JP5938234B2 - Outer wall strut member for construction of upper and lower two tank type water tank, upper and lower two tank type water tank using the same, and construction method of water tank - Google Patents

Description

  The present invention relates to an outer wall strut member for constituting an upper and lower two tank type water tank, and relates to an upper and lower two tank type water tank constructed using the outer wall strut member, and construction of the water tank It is about the method.

  For example, it is embedded in the basement and can temporarily store a large amount of rainwater, and its upper surface can be used as an artificial facility such as a park or a parking lot. As an example of the water storage tank, for example, one described in Patent Document 1 has been proposed.

  As shown in FIG. 90, the upper and lower two-tank type water storage tank a has a mounting portion b that protrudes sideways, and that protrudes sideways at a predetermined position below the mounting portion b. A plurality of columnar body rows e in which a plurality of columnar bodies d integrally having the mounting portions c are arranged on the ground in parallel in a direction intersecting with the projecting directions of the mounting portions b and the intermediate mounting portions c; The columnar body integrally includes an outer frame mounting portion f protruding in the direction and an outer frame intermediate mounting portion g protruding sideways at a predetermined position below the outer frame mounting portion f. And an outer frame portion h surrounding the outer periphery of the row e. Further, the columnar body rows e, e of the columnar body d between the mounting portions b, b of the columnar body rows e adjacent to each other, and the columnar body mounting portion b of the columnar body row e and the outer frame portion h of the columnar body h. The top plate portion j erected between the outer frame placement portion f, the intermediate placement portions c and c of the columnar body d of the columnar body rows e and e adjacent to each other, and the columnar shape It comprises a divided floor slab portion k erected between the intermediate mounting portion c of the columnar body of the body row e and the outer frame intermediate mounting portion g of the outer frame portion h.

  Thus, the upper and lower two-tank type water storage tank a described in Patent Document 1 has an outer frame surrounding the outer periphery of the columnar body row e while the columnar body d constituting the columnar body row e is integrally formed as a whole. The entire portion h was also integrally formed. The divided floor slab portion k is formed between the columnar bodies d and d of the columnar body rows e and e adjacent to each other, between the intermediate placement portions c and c of the columnar body rows e and e, and between the columnar bodies d of the columnar body row e. The intermediate partition portion m is formed by being installed between the intermediate placement portion c and the outer frame intermediate placement portion g of the outer frame portion h.

  Therefore, after the plurality of columnar body rows e and e are constructed as described above, the divided floor slab portion k is placed between the columnar bodies d and d of the columnar body rows e and e adjacent to each other. When placing between the placement portions c and c and between the intermediate placement portion c of the columnar body d of the columnar body row e and the outer frame intermediate placement portion g of the outer frame portion h, The divided floor slab portion k has to be suspended between the adjacent placement portions b and b and between the adjacent placement portions b and the outer frame placement portion f.

  At that time, the divided floor slab portion k is narrowly introduced and opened n between the adjacent placement units b and b, or is narrowly introduced and opened between the adjacent placement unit b and the outer frame placement unit f. It is necessary to hang through the narrow space portion q between the columnar body rows e and e and the narrow space portion s between the columnar body row e and the outer frame portion h through p. Since the length of the printing plate k is larger than the opening width of the introduction opening portions n and p, the divided floor printing plate k has to be suspended by being appropriately rotated in a horizontal plane or the like.

  Further, after the divided floor slab portion k is suspended in the space portions q and s, the divided floor slab portion k is appropriately rotated in a horizontal plane or the like in the narrow space portions q and s and positioned as required. And both end portions t and t of the divided floor slab portion k are placed on the adjacent intermediate placement portions c and c, and are placed on the placement portion c and the outer frame intermediate placement portion g. There is a problem in that the installation work of the divided floor slab portion k requires carefulness and a lot of labor, resulting in poor construction efficiency and an increase in construction cost.

  In addition, this type of upper and lower tank type water storage tank is generally of a large capacity capable of temporarily storing a large amount of rainwater and has a large area in plan view. One of the things that must be considered when constructing such a large water tank is where to set temporary storage for various materials such as reinforcing bars and ready-mixed concrete in a narrow construction site. Such a temporary storage area must be set up so that handling of materials by heavy machinery can be efficiently performed, and set up so as not to cause traffic obstacles around the construction site as much as possible. As one of the measures for alleviating such construction conditions, it is conceivable to provide the temporary material storage place in a distributed state including the construction space.

  For example, when constructing the water storage tank described in Patent Document 1, if the material is to be installed in the construction space, the space portions p and s shown in FIG. . However, since the space portions q and s are vertically long and narrow spaces, the material is columnar when the material is suspended in the material temporary storage place or the temporarily placed material is lifted. There was a problem that the work efficiency was poor because it required careful work so as not to hit the body row e or the outer frame part h. Further, depending on the size of the material, it may occur that it cannot be accommodated in the space. Further, when these space portions p and s are not used as a construction management room, there is a problem that the space is too narrow.

  Further, in this type of water storage tank, a large number of extended construction space portions u extending in one direction are arranged in parallel between the columnar body rows e and e and between the columnar body row e and the outer frame portion h. However, when assembling and constructing the water storage tanks in these extended construction space portions u, it is desired that an operator can freely enter and exit each of the extended construction space portions u in order to improve workability. However, according to Patent Document 1, the outer frame portion h surrounding the outer periphery of the columnar body row e is formed long vertically, and the outer frame portion h blocks both ends of the extended construction space portion u. Therefore, the free movement of the worker to each extended construction space portion u is restricted, and there is room for improvement in construction construction of the water storage tank.

JP 2007-23687 A

  The present invention was developed in view of the problems of the conventional upper and lower two-tank type water storage tank, and in constructing an upper and lower two-tank type water tank divided up and down by an intermediate partition, earth pressure In addition to being able to build a water storage tank that can resist resistance, it is possible to improve the workability of the water tank construction by ensuring the ease of movement of workers, and also construct a large temporary storage area and a wide construction management place It can be provided in a preferable dispersed state in the space part, and it can contribute to facilitating the formation of the intermediate partition part in the outer edge part of the water storage tank, and the construction efficiency can be improved. When the retaining wall is formed by driving steel sheet piles, it is necessary to support the retaining wall with a support structure in which the beams are provided in multiple stages above and below, but it is possible to prevent interference with the beams. Outer wall strut for upper and lower two tank type reservoir construction And, upper and lower tank type water storage tank using the same, and it is an object of the present invention to provide a method for constructing a reservoir.

In order to solve the above problems, the present invention employs the following means.
The outer wall strut member (hereinafter referred to as the outer wall strut member) for the upper and lower two tank type water storage tank structure according to the present invention is formed with an intermediate partition portion by arranging an intermediate slab in an intermediate portion in the vertical direction, An outer wall strut member for water tank construction used to construct an outer wall portion of a water tank in which a water tank top plate is formed by arranging an upper slab in the upper part in the vertical direction, The upper strut member is divided into a member and an upper strut member, and the upper strut member can be connected to the upper end of the lower strut member in an upright state, and an edge portion of the intermediate partition is formed on the upper portion of the lower strut member. On the other hand, an edge portion of the water storage tank top plate portion is positioned on the upper portion of the upper support member.

  A more specific aspect of the outer wall strut member according to the present invention is that an intermediate slab is formed at an intermediate portion in the vertical direction, and an intermediate slab is formed at an upper portion in the vertical direction. It is an outer wall strut member for the construction of a water tank used to construct the outer wall portion of the water tank in which the water tank top plate is formed, and is divided into a lower strut member and an upper strut member, The upper support member can be connected to the upper end of the lower support member in an upright state, and an upper portion of the lower support member is provided with an intermediate receiving portion that supports the edge portion of the intermediate slab from below. The upper support member is provided with an upper receiving portion for supporting the edge portion of the upper slab from below.

  In such a configuration, a support base is projected upward at the upper end portion of the lower support member, and the upper support member is raised at the upper end of the lower support member as the upper end surface of the support support. It is preferable that the intermediate receiving portion is provided in a portion of the upper end portion which is located on the inner side of the water storage tank than the support base portion.

  In the case of providing the support base in this way, a large number of open upper sleeves opened at the upper end surface of the support base are embedded in the upper end portion of the lower support member, and the lower end surface of the upper support member is It is preferable to project a vertical joining bar to be inserted into the insertion hole of each sleeve downward.

  In each of the outer wall strut members, a side support piece is protruded laterally so as to be positioned at a lower portion of an inner vertical surface located on the inner side of the water storage tank of the standing wall portion on the upper strut member. The upper strut member is formed by interposing a liner plate between the lower end of the side support piece and the upper surface of the edge portion of the intermediate slab supported by the intermediate receiving portion. It is preferable to stand upright at the upper end.

  The upper and lower tank type water storage tank (hereinafter referred to as a water storage tank) according to the present invention is provided with an intermediate receiving portion for supporting the edge portion of the intermediate slab from below at the intermediate portion in the vertical direction of the left and right elevation surfaces, An inner wall strut member provided with an upper receiving part for supporting the edge portion of the upper slab from below at the upper part of the left and right elevations, and an intermediate part in the vertical direction between the inner elevations located on the inner side of the water tank Further, an intermediate receiving portion for supporting the edge portion of the intermediate slab from below is provided, and an upper receiving portion for supporting the edge portion of the upper slab from below is provided at the upper portion of the inner vertical surface. And an outer wall support member. The inner wall strut members can be formed in an inner wall strut member row by juxtaposing the joint surface portions as front and rear surfaces of the inner wall strut members in a row, and the inner wall strut member rows are arranged at a required interval in the left-right direction. The outer wall strut members are arranged on the outer side of the inner wall strut member rows at both outer ends constituting the inner wall strut member row parallel body. The joint wall portions as front and rear standing surfaces are arranged in parallel with each other so that the outer wall strut member row is configured with a predetermined distance from the inner wall strut member row. Further, both end portions of the unit water tank portion formed between the inner wall strut member rows and between the inner wall strut member row and the outer wall strut member row are covered with end face plate portions. And all or a part of the outer wall strut member constituting the outer wall strut member row is divided into a lower strut member and an upper strut member, and the upper strut member stands upright at the upper end of the lower strut member. The intermediate support portion that supports the edge portion of the intermediate slab from below is provided on the upper portion of the inner vertical surface of the lower strut member located on the inner side of the water storage tank. An upper receiving part for supporting the edge portion of the upper slab from below is provided on the upper part of the inner strut located on the inner side of the water storage tank of the upper support member. The intermediate slab is constructed between the intermediate receiving portions facing at the same height, and the edge portion is fixed to the intermediate receiving portion so that an intermediate partition portion is configured. The upper slab is constructed between the upper receiving parts facing each other at the same height, and the edge portion is fixed to the upper receiving part to constitute a water tank top plate. It is a feature.

  In another aspect of the water storage tank according to the present invention, an intermediate receiving portion that supports an edge portion of the intermediate slab from below is provided at an intermediate portion in the vertical direction of the left and right elevation surfaces, and at an upper portion of the left and right elevation surfaces. An inner wall strut member provided with an upper receiving portion for supporting the edge portion of the upper slab from below, and an edge of the intermediate slab at an intermediate portion in the vertical direction of the inner vertical surface located on the inner side of the water storage tank An intermediate receiving portion for supporting the portion from below is provided, and an upper portion of the inner vertical surface is provided with an outer wall strut member provided with an upper receiving portion for supporting the edge portion of the upper slab from below. Yes. The inner wall strut members can be formed in an inner wall strut member row by arranging the joint surface portions as front and rear elevations in contact with each other in parallel, and the inner wall strut member row is required in the left-right direction. The inner wall strut member row parallel body is constituted by being arranged in parallel with each other, and the outer wall strut member is arranged on the outer side of the inner wall strut member row at both outer ends constituting the inner wall strut member row parallel body. , The joint surface portions as the front and rear standing surfaces are arranged in parallel with each other so that the outer wall strut member row is configured with a predetermined distance from the inner wall strut member row. Further, both end portions of the unit water tank portion formed between the inner wall strut member rows and between the inner wall strut member row and the outer wall strut member row are covered with end face plate portions. And all or a part of the outer wall strut members constituting the outer wall strut member row is formed by connecting an upper strut member in an upright state at the upper end of the lower strut member, The intermediate receiving portion for supporting the edge portion of the intermediate slab from below is provided at the upper portion of the vertical surface, and the upper column member has an upper portion on the inner vertical surface located on the inner side of the water storage tank. An upper receiving portion for supporting the edge portion of the upper slab from below, the intermediate slab is installed between the intermediate receiving portions facing at the same height, and the edge portion is the intermediate receiving portion. The intermediate partition portion is configured by being fixed to. Further, the end face plate portion is configured by arranging the outer wall strut members side by side with the joint surface portions as the left and right elevation surfaces in contact with each other, and all of the outer wall strut members are arranged. Alternatively, a part thereof is divided into a lower support member and an upper support member, and the upper support member is connected to the upper end of the lower support member in an upright state, and the intermediate partition is formed above the lower support member. The edge portion of the water storage tank top plate portion is located above the upper support member, and the upper slab is located between the upper receiving portions facing each other at the same height. The water tank top plate portion is constructed by being installed and the edge portion being fixed to the upper receiving portion.

  In the water tank, the outer wall strut member at the corner standing at the corner of the water tank and the outer wall strut member at the column end standing in contact with the end of the inner wall strut member row are in the vertical direction. The middle outer wall strut member is formed between the outer wall strut member at the corner and the outer wall strut member at the row end and between the outer wall strut members at the adjacent row end. The upper strut member is divided into a member and an upper strut member, the upper strut member is erected on the upper end of the lower strut member, and the edge portion of the intermediate partition is positioned on the upper portion of the lower strut member, It is preferable that an edge portion of the water tank top plate portion is positioned on the upper support member.

In the construction method of the water storage tank according to the present invention, an intermediate receiving portion that supports the edge portion of the intermediate slab from below is provided in the middle portion in the vertical direction of the left and right elevation surfaces, and the upper portions of the left and right elevation surfaces, An inner wall strut member provided with an upper receiving portion for supporting an edge portion of the upper slab from below, and an edge portion of the intermediate slab at an intermediate portion in the vertical direction of an inner vertical surface located on the inner side of the water storage tank And an outer wall strut member provided with an upper receiving portion for supporting the edge portion of the upper slab from below. The inner wall strut members are arranged side by side in the left-right direction at a required interval, and the inner wall strut members are arranged side by side with the joint surface portions as front and back elevations in contact with each other. The inner wall strut member row parallel body is configured by In addition, the outer wall strut members are arranged in parallel so that the joint surface portions as front and rear elevation surfaces are in contact with each other on the outer side of the inner wall strut member rows at both outer ends constituting the inner wall strut member row parallel body. As a result, an outer wall strut member row is configured with a required distance from the inner wall strut member, and between the inner wall strut member row and between the inner wall strut member row and the outer wall strut member row. In constructing a water storage tank in which both end portions of the unit water tank section to be formed are covered with end face plate portions, the following configuration is adopted.
That is, the end face plate portion includes an outer wall strut member at a corner located at a corner of the water storage tank, an outer wall strut member at a row end connected to an end of the inner wall strut member row, an outer wall strut member at the corner, and The outer wall strut member at the column end and the outer wall strut member at the adjacent row end are arranged in an upright state between the outer wall strut members at the adjacent row ends. All or part of the lower support member is divided into a lower support member and an upper support member, and the upper support member can be connected to the upper end of the lower support member in an upright state. On the upper side of the member, in a state where the upper support member is not connected in the standing state, an operator entrance is formed, and after the required work by the operator is completed, the upper support member is placed on the upper portion of the lower support member. Are connected in an upright state.

  The other construction method of the water storage tank according to the present invention preferably adopts the following configuration when constructing the water storage tank in the construction space portion provided with the retaining wall support having crossed beams. That is, the water storage tank is provided with an intermediate receiving portion for supporting an edge portion of the intermediate slab from below at an intermediate portion in the vertical direction of the left and right elevation surfaces, and an edge of the upper slab at an upper portion of the left and right elevation surfaces. Supports the edge portion of the intermediate slab from below on the inner wall strut member provided with an upper receiving portion for supporting the portion from below and the intermediate portion in the vertical direction of the inner vertical surface located on the inner side of the water tank And an outer wall strut member provided with an upper receiving portion for supporting an edge portion of the upper slab from below at an upper portion of an inner vertical surface located on the inner side. Nonetheless, the inner wall strut members are arranged in a row with the joint surface portions as the front and back elevations in contact with each other, and the inner wall strut member rows are arranged at a required interval in the left-right direction. By arranging them side by side, the inner wall strut member row parallel body is In addition, the outer wall strut members are connected to each other on the outer side of the inner wall strut member rows at both outer ends constituting the inner wall strut member row parallel body. The outer wall strut member rows are arranged at a necessary distance from the inner wall strut members by being arranged in contact with each other, and between the inner wall strut member rows and between the inner wall strut member rows and the outer wall. Both end portions of the unit water tank formed between the column member columns are covered with end plate units, and the outer wall column members and the end plate units constituting the outer column column members are configured. In the portion of the outer wall strut member that interferes with the beam, the required one of the inner wall strut member and the outer wall strut member is divided into a lower strut member and an upper strut member, and the lower strut The upper support member can be connected to the upper end of the member in an upright state. The upper support member is not connected until the cut beam is removed, and after the cut beam is removed, the upper support member is connected to the upper end of the lower support member in a standing state. It is what.

  According to the present invention, when constructing an upper and lower two-tank type water tank divided into upper and lower parts by an intermediate partition, it is possible to construct a water tank that can resist earth pressure, and the ease of movement of the operator. It is possible to provide an outer wall strut member for the construction of a water tank that can be secured and improve the workability of construction of the water tank, and an upper and lower tank type water tank using the same. In addition, it is possible to provide a wide temporary material storage space and a wide construction management place in the construction space part in a preferable dispersed state, and it also contributes to facilitating the formation of the intermediate partition part at the outer edge part of the water tank, etc. It is possible to provide an outer wall strut member for constituting a water tank that can contribute to the improvement of the water tank and an upper and lower tank type water tank using the same. Furthermore, when the retaining wall of the construction space is formed by driving steel sheet piles, the retaining wall must be supported by a supporting work in which the beams are provided in a plurality of stages above and below. It is possible to provide an outer wall strut member for water tank configuration that can prevent the interference of the water tank, and a two-tank type water tank using the same.

It is a whole perspective view which shows the upper and lower two tank type water storage tank which concerns on this invention. It is the partially cutaway perspective view. It is a partial cross section top view of an upper and lower two tank type water storage tank. It is sectional drawing which looked at the upper and lower two tank type water tank in the extension direction of the unit water tank. It is sectional drawing which looked at the upper and lower two tank type water tank in the direction orthogonal to the extension direction of a unit water tank. It is sectional drawing which shows the intermediate partition part and water storage tank top plate part which were formed using the outer wall strut member and the inner wall strut member. It is sectional drawing which shows the state which supported the intermediate | middle slab in the intermediate | middle receiving part of the inner-wall support | pillar member, and supported the upper slab in the upper receiving part. It is explanatory drawing explaining the movement state of the water of the lower unit water tank part by the upper and lower communicating opening part, and the movement state of the water of the upper unit water tank. It is sectional drawing which shows the state which supported the intermediate | middle slab in the intermediate | middle receiving part of the outer wall support | pillar member, and supported the upper slab in the upper receiving part. It is a perspective view which shows an inner-wall support | pillar member. It is sectional drawing explaining the joining structure of the intermediate | middle receiving part and the edge part of an intermediate | middle slab in an inner wall support | pillar member. It is a perspective view which shows the inner-wall support | pillar member which comprises an upper and lower communicating opening part. It is a perspective view which shows the upper and lower communicating opening formed. It is a perspective view which shows an integrated outer wall support | pillar member. It is a perspective view which shows the outer wall support | pillar member of a corner part. It is a perspective view which shows the outer wall support | pillar member of a row end. It is a perspective view which shows an outer wall support | pillar member of an upper and lower divided type. It is a disassembled perspective view which shows an up-and-down bisection type outer wall support | pillar member. It is sectional drawing which shows the state which supported the intermediate | middle slab by the intermediate | middle receiving part of the upper and lower split type outer wall support | pillar member, and supported the upper slab by the upper receiving part. FIG. 5 is a cross-sectional view showing an upper and lower split-type outer wall strut member configured by connecting an upper strut member to an upper end of a lower strut member in a state where an intermediate slab is supported by an intermediate receiving portion. It is a perspective view which shows an example of a 1st intermediate | middle slab. It is a perspective view showing an example of the 2nd middle slab. It is a perspective view which shows an example of an upper slab. It is a perspective view explaining the construction process which constructs an upper and lower two tank type water storage tank. It is a fragmentary perspective view which shows the short side of the water tank which should be constructed. It is sectional drawing which shows the construction middle stage of the water tank which comprised the bottom part and intermediate | middle partition part of the water tank. It is sectional drawing which shows the state which supported the edge part of the intermediate | middle slab with the intermediate | middle receiving part of the outer wall support | pillar member. It is a perspective view which shows the opening part for an inspection comprised by contact | abutting of the 2nd intermediate | middle slab. It is a side view which shows the state which connected the upper support | pillar member and the intermediate | middle slab with the support apparatus after connecting the upper support | pillar member to the standing state in the upper end of the lower support | pillar member. FIG. It is a perspective view explaining the structure of a support apparatus. It is a fragmentary perspective view which shows the state which connected the upper support | pillar member and intermediate | middle slab with the support apparatus. It is a fragmentary perspective view which shows the other aspect of a support apparatus. It is a fragmentary sectional view of an upper and lower two tank type water storage tank. It is sectional drawing which shows the joining structure of the upper receiving part of an inner-wall support | pillar member, and the edge part of an upper slab. It is sectional drawing which shows the joining structure of the upper receiving part of an outer wall support | pillar member, and the edge part of an upper slab. It is a perspective view which shows the integral-type outer wall support | pillar member by which a water stop material is provided. A sectional view showing a state in which the joint surface portions of the outer wall strut members are in contact with each other, a sectional view showing a state in which a water-stopping material is provided on the upper and lower surface portions of the pedestal portion, and a water-stopping material on the upper surface of the upper receiving portion It is sectional drawing which shows the state which provided the state, and the sectional view which shows the state which provided the water stop material in the upper surface of the intermediate | middle receiving part. It is a perspective view which shows the integral-type outer wall support | pillar member by which a water stop material is provided. It is a perspective view which shows the outer wall support | pillar member of the row | line | column end formed with a water stop material. It is a perspective view which shows the outer-wall support | pillar member of an up-and-down two division type provided with a water stop material. It is a perspective view which shows the outer-wall support | pillar member of the corner part of an up-and-down bisection type provided with a water stop material. It is a perspective view which shows the outer-wall support | pillar member of the row | line | column end of an up-and-down bisection type | mold provided with a water stop material. It is a perspective view which shows the inner-wall support | pillar member provided with a water stop material. It is sectional drawing which shows an example of the structure which introduces rainwater in the water tank of an upper and lower two tank type. It is sectional drawing which shows the state which provided the upper and lower raising / lowering ladder in the water storage tank. It is the perspective view which shows an example of the structure which connects and integrates the plurality of inner wall support | pillar members, and the front view and sectional drawing which show a connection part. It is the perspective view which shows an example of the structure which connects and integrates the some outer wall support | pillar member, the front view and sectional drawing which show a connection part. It is sectional drawing which shows the other structure which connects and integrates the plurality of inner wall strut members and the plurality of outer wall strut members. It is a top view explaining the function as a beam-shaped object of an intermediate partition part. It is sectional drawing explaining the movement state of the water and air from a lower water tank part to an upper water tank part. It is a perspective view which shows the upper support | pillar member which provides a side part support piece. It is sectional drawing which shows the joining structure of the upper strut member and the lower strut member, and the joining structure of the intermediate receiving part of a lower strut member, and the edge part of an intermediate slab. It is a perspective view which shows the other aspect of the upper support | pillar member which provides a side part support piece. It is sectional drawing which shows the joining structure of the upper strut member and the lower strut member, and the joining structure of the intermediate receiving part of a lower strut member, and the edge part of an intermediate slab. It is a perspective view which shows the other aspect of the upper support | pillar member which provides a side part support piece. It is sectional drawing which shows the joining structure of the upper strut member and the lower strut member, and the joining structure of the intermediate receiving part of a lower strut member, and the edge part of an intermediate slab. It is sectional drawing which shows the case where an end surface board part is comprised using the integrated outer wall support | pillar member which does not have an intermediate | middle receiving part and an upper receiving part. It is sectional drawing which shows the case where an end surface board part is comprised using the outer wall support | pillar member of an up-and-down bisection type which does not have an intermediate | middle receiving part and an upper receiving part. It is sectional drawing which shows the structure of the outer-wall support | pillar member formed by embedding a sleeve in the lower end part of an upper support | pillar member with the joining structure of the intermediate | middle receiving part and the edge part of an intermediate | middle slab. FIG. 6 is a cross-sectional view showing a case where the lower strut member does not include a support base portion in the upper and lower split-type outer wall strut member. It is the perspective view and side view which show the other aspect of the intermediate | middle receiving part of an up-and-down bipartite type outer wall support | pillar member. It is the perspective view and side view which show the other aspect of the intermediate | middle receiving part of an integral type outer wall support | pillar member. It is a fragmentary perspective view which shows the other aspect of the construction point of the short side of a water tank. It is a perspective view which shows the stage in the middle of the construction in the case of comprising all the outer wall support | pillar members which comprise the outer peripheral part of a water tank using the upper and lower split type outer wall support | pillar member. It is a perspective view which shows an inner-wall support | pillar member of an up-and-down two division type. It is sectional drawing which shows the state which supported the intermediate | middle slab by the intermediate | middle receiving part of the inner wall support | pillar member, and supported the upper slab by the upper part receiving part. The perspective view which shows the state which connected the upper support | pillar member and the intermediate | middle slab with the support apparatus, after connecting an upper support | pillar member to an upright state at the upper end of a lower support | pillar member in the case of using an upper and lower split inner wall support member It is. When constructing a water storage tank in a construction space where there is a retaining wall support, a retaining wall support is constructed by appropriately using an upper and lower split outer wall strut member and an upper and lower split inner wall strut member. It is a top view which shows the state which prevented the interference with a cut beam. FIG. It is a perspective view which shows the construction process in the case of providing a material temporary storage place and a construction management room by using the upper and lower split type inner wall support | pillar member suitably. FIG. 6 is a perspective view showing a case in which an inner wall strut member row is configured by combining an upper and lower split inner wall strut member and an integrated inner wall strut member. It is the front view and partial sectional view which show the other aspect of the connection state of a lower support | pillar member and an upper support | pillar member in the case of using an upper and lower split type outer wall support member. It is a perspective view which shows the case where the end surface board part of a water storage tank is comprised by laminating | stacking the flat body made from precast concrete which exhibits a horizontally long rectangular plate shape. It is a top view which shows the other aspect of an upper and lower two tank type water storage tank. It is a top view which shows the other aspect of an up-and-down two tank type water storage tank. It is a top view which shows the other aspect of an up-and-down two tank type water storage tank. It is a perspective view which shows the other aspect of a 1st intermediate | middle slab. It is a perspective view which shows the other aspect of a 1st intermediate | middle slab. It is a perspective view which shows the other aspect of a 2nd intermediate | middle slab. It is a perspective view which shows the other aspect of a 2nd intermediate | middle slab. It is a perspective view which shows the other aspect of a 2nd intermediate | middle slab. It is a perspective view which shows the 2nd intermediate | middle slab in which an independent opening part is provided adjacently. It is a perspective view which shows the use condition. It is the perspective view and front view which show the other aspect of the 1st intermediate | middle receiving part of an inner-wall support | pillar member of an up-and-down two-part type. It is the perspective view and front view which show the other aspect of an integral inner wall support | pillar member. It is sectional drawing which shows the other aspect in case the upper support | pillar member which comprises an up-and-down bipartite type inner wall support | pillar member provides a side part support piece. It is sectional drawing which shows another aspect. It is sectional drawing which shows another aspect. It is sectional drawing which shows the conventional water tank.

  An upper and lower two-tank type water storage tank (hereinafter also referred to as a water storage tank) 1 according to the present invention is, for example, as shown in FIGS. As shown in FIGS. 4 to 8, it is divided into an upper water tank 5 and a lower water tank 6 by an intermediate partition 3. As shown in FIG. 2, the water storage tank 1 includes an inner wall strut member 7 made of precast concrete, an outer wall strut member 9 made of precast concrete, and an intermediate between the inner wall strut member 7 and the outer wall strut member 9 in the vertical direction. An intermediate slab 10 made of precast concrete which is disposed at the position and constitutes the intermediate partition portion 3, and is disposed on the inner wall strut member 7 and the outer wall strut member 9 to constitute the water tank top plate portion 11. An upper slab 12 made of precast concrete is provided.

  In the present embodiment, as shown in FIGS. 5 to 8 and FIG. 10, all of the inner wall strut members 7 are integrally formed as a whole. Then, intermediate receiving portions 21 and 21 (hereinafter referred to as first intermediate receiving portions) that support the edge portions 20 in the longitudinal direction of the intermediate slab 10 from below at intermediate portions in the vertical direction of the left and right standing surfaces 13 and 14. 21a, 21a) and upper receiving portions 25, 25 (on the upper sides of the left and right elevations 13, 14) for supporting the edge portions 27, 27 in the longitudinal direction of the upper slab 12 from below. Hereinafter, first upper receiving portions 25a and 25a are also provided).

  Further, the outer wall strut member 9 includes an integrally formed outer wall strut member 9A formed integrally as shown in FIGS. 14 to 16, and an upper and lower split wall outer strut member as shown in FIG. There is 9B.

As shown in FIGS. 2 to 6, 10, and 25, the inner wall strut members 7 are arranged in a row with joint surface portions 31 and 31 as front and rear surfaces 29 and 30 in contact with each other. By being provided, the inner wall strut member row 32 can be constituted, and the inner wall strut member row parallel body 33 can be constituted by arranging the inner wall strut member row 32 in parallel in the left-right direction at a required interval.
As shown in FIGS. 2 to 3 and 14, the outer wall strut member 9 is arranged on the outer side of the inner wall strut member rows 32 a, 32 a at both outer ends constituting the inner wall strut member row parallel body 33. The outer wall strut member rows 39 and 39 can be configured by arranging the joint surface portions 37 and 37 as the standing surfaces 35 and 36 at both ends in contact with each other at a necessary distance from the rows 32a and 32a. Moreover, as shown in FIGS. 1-3, the both end parts 38 and 38 of the unit water tank parallel body 34 (FIG. 3) mentioned later are made to be covered with the end surface board parts 18 and 18. As shown in FIG.

  Further, as shown in FIGS. 6, 2 to 3, and 5 to 6, the intermediate slab 10 is disposed between the first intermediate receiving portions 21a and 21a facing each other at the same height in the present embodiment. In the present embodiment, the side portions 41 and 41 are installed in contact with each other (FIG. 3), and between the first intermediate receiving portion 21a and the second intermediate receiving portion 21b at the same height. Is constructed so that the side portions 41 and 41 are in contact with each other to constitute the intermediate partition portion 3. The upper slab 12 is installed between the first upper receiving portions 25a and 25a, which will be described later, facing each other at the same height with the side portions 42 and 42 in contact with each other (FIG. 2). The water storage tank top plate shown in FIG. 2 is constructed between the first upper receiving portion 25a described later and the second upper receiving portion 25b described later with the side portions 42 and 42 in contact with each other. The part 11 is configured.

  As shown in FIGS. 2 and 4, the upper and lower two-tank type water storage tank 1 having such a configuration is opposed to the inner wall strut member rows 32, 32 adjacent to each other and the inner wall strut member rows 32a at both outer ends. The unit water tank 2 is configured between the outer wall strut member row 39 and the unit water tank parallel body 34 is configured. Each unit water tank 2 is divided into a lower unit water tank part 43 and an upper unit water tank part 45 by the intermediate partition part 3. Also, as shown in FIGS. 4 and 8, in the lower water tank 6 and the upper water tank 5, the adjacent lower unit water tanks 43 and 43 are adjacent to each other and the upper unit water is adjacent. The tank portions 45 and 45 communicate with each other through upper and lower communication openings 46 and 47 that are appropriately provided above and below the inner wall strut member row 32. The upper and lower communication openings 46 and 47 are provided at both side portions and the center portion in the length direction of the inner wall column member row 32 in FIG. As shown by arrows in FIG. 8, the upper and lower communication openings 46 and 47 allow water to pass back and forth between the adjacent lower unit water tank parts 43 and 43 and the adjacent upper unit water tank parts 45 and 45. At the same time, when the inside of the water storage tank 1 is cleaned, it also functions as an opening / closing opening that allows an operator or work implement to enter / exit.

  Hereinafter, the upper and lower tank type water storage tank 1 having such a configuration will be described in detail. First, the configuration of the inner wall strut member 7 will be specifically described. As shown in FIG. 10, the inner wall strut member 7 has a rectangular plate shape that is long in the vertical direction, and is projected upward on both sides of the upper and lower surfaces 13 and 14 of the left and right standing surfaces 13 and 14. Protrusions 88, 88 and lower projecting parts 56, 56 project, and intermediate projecting parts 55, 55 project in the opposite direction from the middle part of the left and right upright surfaces 13, 14.

  The upper surface portions 86, 86 of the left and right upper projecting portions 88, 88 are formed as a flush horizontal surface (the upper horizontal mounting surfaces 92, 92), and the lower surfaces of the upper projecting portions 88, 88 are It is formed as inclined surfaces 89 and 89 that are inclined upward toward the outside, and vertical surfaces 91 and 91 are continuously provided at upper end edges 90 and 90 thereof.

  The upper surfaces of the left and right lower protrusions 56, 56 are formed as inclined surfaces 57, 57 that are inclined downward toward the outside, and vertical surfaces 60, 60 are connected to the lower edges 59, 59 thereof. Accordingly, a pedestal portion 61 having a mountain shape when viewed in the front-rear direction is provided at the lower edge portion of the inner wall strut member 7. In the present embodiment, trapezoidal groove portions 62, 62 extending in the front-rear direction are provided in the left-right opposition state at the central portion of the vertical surface 60 in the up-down direction.

  As shown in FIG. 10, the left and right intermediate projecting portions 55, 55 are formed as inclined surfaces 63, 63 whose lower surfaces are inclined upward toward the outside, and their upper edge 65, A vertical surface 66, 66 is connected to 65. Further, the upper end edges 64, 64 of the vertical surfaces 66, 66 are provided with the intermediate receiving portions 21, 21 (first intermediate receiving portions 21a, 21a) for supporting the edge portion 20 in the longitudinal direction of the intermediate slab 10 from below. ) Horizontal upper surfaces (lower horizontal mounting surfaces 75, 75) are continuously provided. As shown in FIG. 11, the lower horizontal placement surfaces 75, 75 have an insert 79 into which a lower edge portion 77 of a joining bolt 76 for joining the edge portion 20 of the intermediate slab 10 is screwed. It is buried at the required interval in the direction. In the present embodiment, as shown in FIG. 10, the horizontal mounting surface 75 is buried at three locations, that is, both end portions and a central portion.

  The vertical height of the inner wall strut member 7 having such a configuration is set to 7550 mm, for example. The height of the lower horizontal mounting surface 75 from the lower surface 112 of the inner wall strut member 7 is set to 3550 mm, for example, and the lower surface 112 of the inner horizontal strut member 7 of the upper horizontal mounting surface 92 is set. Is set to 7550 mm, for example. The horizontal width of the horizontal lower surface 112 (FIG. 10) of the inner wall support member 7 is set to 1000 mm, for example, and the horizontal width of the horizontal upper surface 111 (FIG. 10) is set to 900 mm, for example. Further, the length of the inner wall strut member 7 having such a configuration in the front-rear direction is two types in consideration of the capacity of the water tank to be constructed, for example, 1500 mm and 1000 mm.

  FIG. 12 shows inner wall strut members 7 and 7 provided with upper and lower side cutout portions 80a and 80b for constituting the upper and lower communication openings 46 and 47, and FIG. The case where the upper and lower communicating openings 46 and 47 are configured by matching the side cutout portions 80a, 80a, 80b, and 80b is shown.

  Next, the configuration of the outer wall support member 9 will be specifically described. As described above, the outer wall strut member 9 constituting the water storage tank 1 includes the integrated outer wall strut member 9A and the upper and lower split wall outer wall strut member 9B. What is configured as the integrated outer wall column member 9A is erected by all the outer wall column members 9A1 (FIGS. 9 and 14) constituting the outer wall column member row 39 and the water tank corner 114 ( That is, the outer wall column member 9A2 (FIG. 15) at the corners (established at both ends 38, 38, 38, 38) of the outer wall column member row 39, 39 and the both ends of the inner wall column member row 32 are contacted. It is the outer wall strut member 9A3 (FIG. 16) at the row end erected in the contact state. Also, the upper and lower split outer wall column members 9B are configured such that the corner 8A between the outer wall column member 9A2 at the corner and the outer wall column member 9A3 at the column end (FIG. 24) and the adjacent columns. This is an intermediate outer wall strut member 9B1 (FIG. 17) disposed between the end outer wall strut members 9A2 8B (FIG. 24).

  As shown in FIG. 9 and FIG. 14, the outer wall strut member 9 </ b> A <b> 1 is an upright surface (an upright surface located on the inner side of the water storage tank) of the upright wall portion 113 that is a vertically long rectangular plate. The upper and lower protrusions 115 and 116 protrude from the upper and lower portions of the inner wall 26, and the intermediate protrusion 119 protrudes from the intermediate portion of the inner vertical surface 26. It is formed in a letter shape. And the upper surface 120 and the lower surface 121 are formed in a horizontal surface, and the vertical surface 122,123 of the both ends of the said standing wall part 113 is made into the joint surface part 125,125.

  An upper surface of the lower protrusion 116 is formed as an inclined surface 126 inclined downward inward, and a vertical surface 129 is connected to the lower end edge 127 to constitute a pedestal portion 128. . In the present embodiment, a trapezoidal groove portion 130 extending in the front-rear direction is provided in the vertical center portion of the vertical surface 129.

  Further, the lower surface of the upper protruding portion 115 is formed as an inclined surface 131 inclined upward inward, and a vertical surface 133 is connected to the upper end edge 132 of the upper protruding portion 115. The upper projecting portion 115 constitutes the upper receiving portion (second upper receiving portion 25b) 25 that supports the edge portion 27 in the width direction of the upper slab 12 from below, and the upper surface of the upper protruding portion 115 is the upper horizontal placement. The horizontal mounting surface 135 is set at the same height as the horizontal mounting surface 92 on the first upper receiving portion 25a.

  Further, the lower surface of the intermediate projecting portion 119 is formed as an inclined surface 136 inclined upward inward, and a vertical surface 139 is connected to the upper end edge 137, and the upper end edge 137 includes A horizontal surface 140 facing the inner vertical surface 26 is continuously provided. The intermediate projecting portion 119 constitutes the intermediate receiving portion (second intermediate receiving portion 21b) 21 that supports the edge portion 20 in the length direction of the intermediate slab 10 from below, and the upper surface of the intermediate protruding portion 119 is a lower horizontal mounting. The mounting surface 141 is configured and is set at the same height as the lower horizontal mounting surface 75 of the first intermediate receiving portion 21a.

  The outer wall strut member 9A2 at the corner is disposed in the water tank corner 114 as shown in FIG. 2, and has an L-shaped cross section and is long in the vertical direction as shown in FIG. An upper projecting portion 143, an intermediate projecting portion 145, and a lower projecting portion 146 project from an upper portion of the inner surface 26 of the integral standing wall portion 142, an intermediate portion in the vertical direction, and a lower portion, respectively. The lower surface 149 is formed in a horizontal plane, and the vertical surfaces at both ends are the joint surface portions 125 and 125.

  And the base part 128 is formed of this lower protrusion part 146, The said intermediate | middle protrusion part 145 is exhibiting L shape by planar view. The upper protrusion 143 has an L shape in plan view. The intermediate projecting portion 145 constitutes the intermediate receiving portion (second intermediate receiving portion 21b) 21 that supports the edge portion (corner portion) 20 of the intermediate slab 10 from below, and its horizontal plane is The lower horizontal mounting surface 141 is used. The lower horizontal placement surface 141 is set at the same height as the horizontal placement surface 75 below the first intermediate receiving portion 21a. The upper protrusion 143 is the second upper receiving portion 25b that supports the edge portion (corner portion) 27 of the upper slab 12 from below, and its horizontal upper surface is the upper horizontal mounting surface. 135. The upper horizontal placement surface 135 is at the same height as the horizontal placement surface 92 above the first upper receiving portion 25a.

  As shown in FIG. 16, the outer wall strut member 9A3 at the end of the row is a joint that is continuous in the vertical direction at the center portion in the width direction of the vertical surface 26 of the rectangular plate portion 155 that is integrally formed long in the vertical direction. A standing wall portion 157 having a T-shape formed by integrally projecting the ridge portion 156 is provided. The lower protrusions 160 on the left and right of the lower part of the T-shaped standing wall 157 are formed so as to partition the left and right corner portions 159 and 159 formed by the joint protrusion 156 and the rectangular plate part 155. 160 is provided, and left and right intermediate projecting portions 161 and 161 are provided to project from an intermediate portion in the vertical direction of the T-shaped standing wall portion 157, and above the T-shaped standing wall portion 157. The left and right upper projecting portions 162 and 162 are projected.

  Accordingly, as shown in FIG. 16, the outer wall strut member 9A3 at the end of the row has the vertical vertical surfaces at both ends thereof as the joint surface portions 125, 125, and the vertical tip surface of the joint protrusion 156 is , A vertical joint surface portion 125 that can come into contact with the vertical end surface 167 of the inner wall column member row 32.

  The left and right lower projecting portions 160, 160 constitute a pedestal portion 128 of the outer wall strut member 9A3 at the row end. The left and right intermediate projecting portions 161, 161 constitute the second intermediate receiving portions 21b, 21b, and the horizontal upper surface carries the edge portion 20 (corner portion) of the intermediate slab 10. The lower horizontal placement surface 141 is placed. The lower horizontal placement surface 141 is set at the same height as the horizontal placement surface 75 below the first intermediate receiving portion 21a.

  The left and right upper projecting portions 162 and 162 constitute the second upper receiving portions 25b and 25b, and the horizontal upper surface carries the edge portion 27 (corner portion) of the upper slab 12. The upper horizontal mounting surface 135 is set. The horizontal mounting surface 135 is set at the same height as the horizontal mounting surface 92 on the first upper receiving portion 25a.

  As shown in FIGS. 17 to 18, the intermediate outer wall column member 9 </ b> B <b> 1 is of a vertically divided type, and is configured by connecting the upper column member 17 to the upper end 16 of the lower column member 15 in an upright state. . As shown in FIG. 18 (A), the lower strut member 15 has a U-shaped cross section, its upper surface portion 48 and its lower surface portion 49 are formed in a horizontal plane, and its both ends (left and right) are vertical. The vertical surfaces are the lower joint surface portions 31a and 31a. A support base 50 projects upward from the upper end portion 44 of the lower support member 15, and the upper support member 17 stands on the upper end 16 as the upper end surface 51 of the support support 50. It is made to be connected to the installed state. Further, in the portion of the upper end portion 44 of the lower support member 15 that is located on the inner side of the water storage tank than the support base portion 50, as shown in FIGS. 18 (A) and 19 (B), An intermediate receiving portion 163 that supports the edge portion 71 in the width direction of the intermediate slab 10 from below is provided, and the upper end surface 51 of the support base 50 is formed by the intermediate receiving portion 163 as shown in FIG. It is designed to be positioned below the upper surface 52 of the edge portion 71 in a supported state.

  More specifically, as shown in FIGS. 17 to 18, the lower strut member 15 is an inner vertical surface (an upper surface positioned on the inner side of the water storage tank) 19 of the lower vertical wall portion 54 having a rectangular plate shape. An upper protruding portion 22 protrudes from the upper portion, and a lower protruding portion 23 protrudes from the lower portion of the inner standing surface 19. The upper surface of the lower protrusion 23 is formed as an inclined surface 24 that is inclined downward toward the outside, and a vertical surface 58 is connected to the lower end edge 28 of the lower protrusion member 15. A pedestal portion 128 having a mountain shape when viewed in the front-rear direction is provided at the lower edge portion of the lower edge portion. In the present embodiment, a trapezoidal groove 130 extending in the front-rear direction is provided at the vertical central portion of the vertical surface 58.

  Further, as shown in FIGS. 17 to 18 in the present embodiment, the upper protrusion 22 is formed as an inclined surface 67 whose upper surface is inclined upward toward the outside, and its upper edge 68. A vertical surface 69 is continuously provided, and an upper surface (lower horizontal placement surface) 141 is continuously provided at the upper edge 70 of the vertical surface 69 at the same height as the lower horizontal placement surface 75. The lower horizontal mounting surface 141 supports the edge portion 71 in the width direction of the intermediate slab 10 from below, as shown in FIG. 19B. And the said support stand part 50 is protruded toward upper direction adjacent to this lower horizontal mounting surface 141. As shown in FIG.

  In this embodiment, the left and right side surfaces 73 and 74 of the support base 50 are configured as vertical surfaces, and the upper portions of the vertical vertical surfaces 78 and 81 at both ends (left and right) of the lower standing wall portion 54 are used. It is composed. The front and rear side surfaces 82 and 83 of the support base 50 are formed as vertical surfaces, and the front side surface 82 and the upper surface (lower horizontal mounting surface) 141 are perpendicular to each other. The rear side surface 83 constitutes the upper portion of the outer vertical surface 84 of the lower vertical wall portion 54 facing the inner vertical surface 19. The upper end surface 51 of the support base 50 is formed as a horizontal plane. As shown in FIGS. 7, 18, and 20, the lower horizontal mounting surface 141 has a lower connection bolt 76 (FIG. 19) for connecting the side edge portion 71 of the intermediate slab 10. Inserts 79 into which the edge portions 77 are screwed are embedded at a required interval in the left-right direction. In this embodiment, as shown in FIG. 18A, the lower horizontal placement surface 141 is embedded at three positions, that is, both end portions and a central portion.

  Further, as shown in FIGS. 18A and 20, a large number of upper end open sleeves 85 opened at the upper end surface 51 are embedded in the support base 50. In this embodiment, as shown in FIG. 18A, the sleeves 85 are positioned on both the left and right sides of the upper end surface 51, and are provided at required intervals in the front-rear direction.

  On the other hand, as shown in FIGS. 17 to 18, the upper support member 17 has an inner vertical surface 94 (an inner vertical surface located on the inner side of the water storage tank) 94 of the upper vertical wall portion 93 having a rectangular plate shape. The cross section formed by projecting the upper projecting portion 95 on the upper portion is formed in an inverted L shape, and the upper surface portion 96 and the lower surface portion 97 are formed in a horizontal plane. And the right and left vertical surfaces of the upper standing wall portion 93 are the upper joint surface portions 31b and 31b. In addition, the lower surface of the upper protrusion 95 is formed as an inclined surface 100 that is inclined upward and outward, and a vertical surface 102 is connected to the upper edge 101 thereof.

  In this embodiment, as shown in FIGS. 17 to 18, the left and right widths of the lower surface portion 97 of the upper standing wall portion 93 are set equal to the left and right widths of the horizontal upper end surface 51 of the support base portion 50. . Further, as shown in FIG. 18B, the vertical joining bars 103 inserted into the respective sleeves 85 project downward from the lower end surface 97. The diameter of the vertical joining bars 103 is set to 22 mm, for example, and the hole diameter of the insertion hole 87 (FIG. 20) of the sleeve 85 is set to 35 mm, for example. As shown in FIG. 19A, the upper protrusion 95 constitutes an upper receiving portion 165 that supports the edge portion 164 in the width direction of the upper slab 12 from below, and the upper surface thereof is The upper horizontal placement surface 166 has the same height as the upper horizontal placement surface 92.

  17 to 18 and 19A, a lower edge portion 77 of a joining bolt 76 for joining the edge portion 164 of the upper slab 12 is screwed into the horizontal mounting surface 166. Inserts 79 are embedded at a required interval in the front-rear direction. In the present embodiment, as shown in FIGS. 17 to 18, the horizontal mounting surface 166 is embedded at three positions, that is, both ends and a central portion.

  However, as shown in FIG. 17, the intermediate outer wall strut member 9B1 can be constructed by placing the lower surface portion 97 of the upper strut member 17 in alignment with the horizontal upper end surface 51 of the support base portion 50. . For this mounting, for example, as shown in FIG. 20, a filler 104 such as non-shrink mortar or grout is injected into the insertion holes 87 of the sleeves 85, and the upper support member 17 is suspended. Along with this, the vertical joining muscle 103 is inserted into the insertion hole 87. When a part of the filler 104 overflows due to this insertion, it may be wiped off. When the filler 104 is cured, the intermediate outer wall strut member 9B1 is configured. The left and right side surfaces 73 and 74 of the support base 50 are continuously connected in series to the left and right upstanding surfaces 105 and 106 of the upright wall portion 93 on the upper support member 17, respectively, and present a vertical surface as a whole. . The vertical vertical surfaces of the intermediate outer wall strut member 9 </ b> B <b> 1 having such a configuration that are continuous in the vertical direction are the joint surface portions 31 and 31.

  There are two types of the intermediate slab 10. There are two types of the first intermediate slab 10a as shown in FIGS. 21A is formed in a rectangular plate shape, the length of the long side 169 is set to 4560 mm, for example, and the length of the short side 170 is set to 2500 mm, Its thickness (thickness seen in the vertical direction) is set to 300 mm. Further, in the short side portions 171 and 171 of the first intermediate slab 10 a, a joining through hole 172 for inserting the joining bolt 76 is provided in parallel in the extending direction of the short side 170. In this embodiment, five are arranged in parallel. In this embodiment, as shown in FIGS. 11 and 19 to 20, the bonding through-hole 172 is formed as a tapered hole that expands from the lower end 173 toward the upper end 175, and the hole diameter of the lower end 173 is as follows. The diameter is set larger than the diameter of the joining bolt 76. On the other hand, in the first intermediate slab 10a shown in FIG. 21 (B), in addition to the configuration shown in FIG. 21 (A), ten of the through-holes 172 for bonding are also arranged in parallel on the long side portion 176. .

  Further, as shown in FIG. 22, the second intermediate slab 10b has a rectangular plate shape and the long side of the first intermediate slab 10a (both side edge portions viewed in the extending direction of the inner wall column member row 32). The center portions of 176 and 176 are notched inward, so that notched openings 177 and 177 are formed. In the present embodiment, the notched opening portions 177 and 177 are formed by being largely notched in a pentagonal mountain shape so as to be recessed in a symmetrical form on the inside. Between the front edge portions 179 and 179 of the notch opening portions 177 and 177 that are linear, it is long in the extending direction of the long side 169 (direction orthogonal to the extending direction of the inner wall column member row 32) F2, for example, The connecting plate portion 180 is a narrow connecting plate portion 180 having a width of 500 mm, and the connecting plate portion 180 connects the wide portions 181 and 181 on both sides.

  The upper slab 12 has two types as shown in FIGS. Among them, the one shown in FIG. 23A is formed in a rectangular plate shape, and the length of the long side 182 is set to 4730 mm, for example, and the length of the short side 183 is set to 2500 mm, for example. Has been. In the short side portions 185 and 185, a joining through hole 172 for inserting the joining bolt 76 is arranged in parallel in the extending direction of the short side in the same configuration as in the intermediate slab 10. ing. On the other hand, in the upper slab 12 shown in FIG. 23 (B), in addition to the configuration shown in FIG. 23 (A), ten long-side portions 178 are also provided in parallel with the through-holes 172 for bonding.

  Next, an example of a construction process for constructing the upper and lower tank type water storage tank 1 using the inner wall strut member 7, the outer wall strut member 9, the intermediate slab 10 and the upper slab 12 having the above-described configuration will be described. First, as shown in FIGS. 24 to 25, after the foundation concrete 186 is formed at the bottom of the construction space 193 formed by excavating the place where the water tank is to be constructed, on the short side of the water tank to be constructed, The outer wall column members 9A2 and 9A2 at the corners are erected at both ends, and the outer wall column member 9A3 at the column end is erected in accordance with the arrangement state of the inner wall column member columns 32 to be formed. Thereafter, the lower strut member 15 constituting the intermediate outer wall strut member 9B1 is disposed in an upright state.

  Then, following each of the outer wall column members 9A2 and 9A2 at the corners at both ends, the outer wall column member 9A1 is directed from the right side to the left side as indicated by the arrow F in FIG. As shown in Fig. F, they are arranged in a standing state where they are in contact with each other sequentially (from left to right). Thereby, the said outer wall support | pillar member row | line | column 39,39 can be comprised.

Further, the inner wall strut members 7 are sequentially brought into contact with each of the outer wall strut members 9A3 at the row ends, and are arranged in a standing state. As a result, the inner wall strut member row 32 can be formed following the outer wall strut member 9A3 at the end of each row, whereby the inner wall strut member row parallel body 33 arranged in parallel at an interval of about 4600 mm can be formed.
Thereafter, as shown in FIG. 24, the outer wall column members 9A2 and 9A2 at the corners are erected in contact with the end portions 107 and 107 of the outer wall column member rows 39 and 39, and the inner wall column members The outer wall strut member 9A3 at the row end is erected in a contact state at each end portion 117 of the row 32. Further, the lower strut member 15 is brought into contact with 8A between the outer wall strut member 9A2 at the corner and the outer wall strut member 9A3 at the row end and between the outer wall strut members 9A3 and 9A3 at the adjacent row end. Install in an upright position.

  Accordingly, as shown in FIG. 24, both end portions of the unit space portion 108 between the inner wall strut member rows 32, 32 and the unit space portion 108 between the inner wall strut member row 32 and the outer wall strut member row 39. Is opened on the upper side of the lower column member 15 (that is, between the upper part of the outer wall column member 9A2 at the corner and the upper part of the outer wall column member 9A3 at the column end, the outer wall column member at the column end) 9A3 and 9A3 are opened), and open end portions 110 and 110 that allow the operator to enter and exit are formed.

  Thereafter, for example, as shown in FIGS. 25 to 26, appropriate bottom reinforcement 231 is applied to the bottom portion of each unit space portion 108, and the bottom concrete 230 is placed to form the bottom portion 227 of the water storage tank. Prior to this placement, appropriate reinforcing bars 231 are provided between the pedestal portions 128 and 61 and between the pedestal portions 61 and 61. For this purpose, as shown in FIG. Horizontal projecting bars 233 and 233 are provided on the upper and lower surface portions 150 and 151 (FIG. 26) of the vertical surface 129 of the pedestal portion 128 that sandwich the trapezoidal groove portion 130. At the site, the edge portion of the streak 233 is screwed horizontally into the insert embedded in the upper and lower surface portions 233 and 233.

  Similarly, the upper and lower surface portions 232 and 232 sandwiching the trapezoidal groove portion 62 of the vertical surface constituting the pedestal portion 61 of the inner wall strut member 7 are horizontally projected to project the lines 233 and 233 and face each other. The horizontally projecting bars 233 and 233 are appropriately connected by a connecting bar 239. When performing this construction, the operator can easily enter and exit each unit space 108 through the open end 110. In addition, a material such as a reinforcing bar for forming the bottom of the water storage tank can be introduced through the open end 110 as well as through the open top 109 of the unit space 108. By these, the bottom part 227 of the water tank can be formed with good workability.

  After forming the bottom 227 of the water tank in this way, or together with forming the bottom 227 of the water tank, the intermediate partition 3 is formed as shown in FIG. As shown in FIG. 26, the intermediate partition portion 3 is formed by placing the intermediate slab 10 between the first intermediate receiving portions 21a, 21a facing each other at the same height, with the side portions 41, 41 facing each other. As shown in FIG. 25, the side portions 41 and 41 are arranged between the first intermediate receiving portion 21a and the second intermediate receiving portion 21b at the same height as shown in FIG. As shown, install in contact. FIG. 26 shows a state in which the unit reservoirs 2 are arranged in parallel, in which a bottom part (bottom part of the water storage tank) 227 of the unit space part 108 is formed and the unit space part 108 is divided into upper and lower parts by the intermediate partition part 3. A part is shown.

  Here, the construction of the intermediate slab 10 will be described in more detail. As shown in FIGS. 11 and 27, the construction is such that both edge portions 20 and 20 are connected to the lower horizontal mounting surfaces 75 and 75. , 75, 75.

  When mounting in this manner, the inner wall strut member 7 is, for example, 70 mm between the end surface portion 184 of the intermediate slab 10 and the left and right vertical surfaces 13, 14 of the standing wall portion 53, as shown in FIG. A gap portion 196 having a certain groove width is formed. As for the outer wall strut member 9A1, as shown in FIG. 27, a gap portion 188 having a groove width of, for example, about 30 mm is formed between the end surface portion 187 of the intermediate slab 10 and the standing wall portion 113. To be done. FIG. 20 shows a state in which the edge portion 71 of the intermediate slab 10 is mounted on the lower horizontal mounting surface 141 of the intermediate receiving portion 163 of the intermediate outer wall strut member 9B1. In this embodiment, as shown in FIG. 20, the upper end surface 51 of the support base 50 is positioned above the upper surface 52 of the side edge portion 71 of the intermediate slab 10 in this embodiment. To do.

  When the intermediate slab 10 is placed in this way, as shown in FIGS. 11, 27, and 20, the joining bolts 76 erected on the lower horizontal placement surfaces 75, 75, and 141 are joined to the joint. Then, it is inserted into the through-hole 172, and then the filler 104 such as non-shrink mortar or grout is filled into the through-hole 172 for joining. By hardening the filler 104, the edge portion 20 can be fixed to the first and second intermediate receiving portions 21a and 21b, and the side edge portion 71 can be fixed to the side edge receiving portion 163.

  As described above, by forming the gap portions 196 and 188 having a large groove width, when manufacturing errors and construction errors occur in the intermediate slab 10, the inner wall strut member 7, the lower strut member 15, etc., Even when these errors occur, the gap portion 196, 188 can be reliably filled with the filler 104, and the intermediate slab 10, the intermediate receiving portions 21a, 21a, and the intermediate receiving portion 163 can be filled. Can be integrated.

  In this embodiment, as shown in FIG. 3, a direction perpendicular to the extending direction of the intermediate slab 10 constructed at both ends of the water storage tank 1 as viewed in the extending direction F <b> 1 of the inner wall column member row 32. For the four rows extending to F2, the first intermediate slab 10a having a rectangular plate shape shown in FIG. 21 is used, whereby horizontal flat surface portions are formed on both side portions 199, 199 of the intermediate partition portion 3. Has been made to form. A second intermediate slab 10b shown in FIG. 22 is installed between the two side portions 199, 199, and adjacent notch openings 177, 177 are seen in the extending direction F1 of the inner wall column member row 32. As shown in FIG. 3 and FIG. 28, the relatively large inspection opening 201 having, for example, a turtle shell shape is formed. As a result, as shown in FIGS. 3 and 50, a state is obtained in which the intermediate partition portion 3 having the horizontal upper surface 202 is formed inside the surrounding frame body 40.

  After that, as shown in FIGS. 19 and 25 to 26, the outer column members 9A1, 9A2, and 9A3 in the standing state and the outer portion of the surrounding frame body 189 by the lower column member 15 are arranged over the entire circumference. Backfill with earth and sand to the upper end height of the lower support member 15. By this backfilling portion 190, the lower structure portion 191 of the water tank 1 is stabilized against earth pressure. Then, by refilling in this way, as shown in FIG. 19, the upper surface 214 of the backfill portion 190 is connected to the upper surface 218 of the intermediate partition portion 3 in a substantially continuous manner. It is easier for the worker to enter and exit the inside of the unit space portion 108 such as the upright construction of the upper support member 17, the connection of the inner support members 7, 7, the connection of the outer support members 9, 9, etc. Various operations that can be placed on the vehicle can be efficiently performed using the intermediate partition portion 3 as a scaffold.

  Thereafter, as shown in FIG. 20, the upper support member 17 is connected to the upper end 16 of the lower support member 15 in an upright state. As a result, as shown in FIG. 3, the side plate portions 192 and 192 on the long side of the water storage tank 1 are constituted by the outer column member rows 39 and 39 on both sides, and the outer wall column members 9A2 at the corners and The outer wall strut member 9A3 at the row end and the intermediate outer wall strut member 9B1 constitute end plate portions 18 and 18 on the short side of the water storage tank.

  Here, a procedure for connecting the upper support member 17 to the upper end 16 of the lower support member 15 in an upright state will be described with reference to FIG. The upper support member 17 is suspended by a crane and placed on the upper end 16 (the upper end surface 51 of the support base 50 in this embodiment) 16 of the lower support member 15. 103 is inserted into the corresponding insertion hole 87 of the sleeve 85 (filled with a filler 104 such as non-shrink mortar or grout as described above) 87, and the vertical state of the upper support member 17 is adjusted. And this adjustment state is maintained.

  Therefore, for example, as shown in FIGS. 29 to 30, the length of the upper surface 52 of the intermediate slab 10 and the vertical surface 26 of the upper column member 17 is adjusted on the inner surface 26 side of the upper column member 17. The connection may be made using a possible support device 204. As shown in FIGS. 31 to 32, the support device 204 includes hook members 206 and 206 fixed to the standing surface 26 and the upper surface 52 of the intermediate slab 10, and a support shaft 207 whose length can be adjusted. The engaging members 206 and 206 are U-shaped engaging pieces on a mounting plate 211 fixed by fixing bolts 210 screwed into the upper surface 52 and the insert 209 embedded in the upright surface 26. Both edge portions 213 and 213 of 212 are fixed.

  Further, the support shaft 207 includes a pipe member 216 formed as screw cylinder portions 215 and 215 having both ends at the opposite ends, and a screw shaft member 217 screwed into the both screw cylinder portions 215 and 215 which are reverse screws. , 217 and a hook member 219 provided at an end portion of the screw shaft member 217 and hooked on the U-shaped engagement piece 212, and the screw shaft member 217 with respect to the screw cylinder portions 215, 215. The length of the support shaft 207 can be adjusted by adjusting the screwed state. The hooking members 206 and 206 can be formed using various members that can be hooked, for example, using eyebolts 206a as shown in FIG.

However, when the upper and lower hook members 219 and 219 are hooked on the upper and lower U-shaped engagement pieces 212 and 212, the pipe member 216 is rotated by a required amount, so that the support device 204 causes the vertical state of the upper support member 17. The adjustment state can be maintained as shown in FIGS.
The support shaft 207 is removed after the filler 104 in the sleeve 85 is cured. Thus, the intermediate outer wall strut member 9B1 in which the upper strut member 17 is erected in the vertical state is configured.

  Thereafter, as shown in FIG. 34, the upper slab 12 is installed with the side portions 42 and 42 abutting each other between the first upper receiving portions 25a and 25a facing each other at the same height (FIG. 2). In addition, the side portions 42 and 42 are installed in contact with each other between the first upper receiving portion 25a and the second upper receiving portion 25b at the same height. This erection is performed by placing the edge portion 27 of the upper slab 12 on the horizontal mounting surfaces 92, 92, 135. During this placement, as shown in FIGS. 35 and 36, the joining bolt 76 is inserted into the joining through hole 172, and the filler 104 such as non-shrink mortar or grout is inserted into the joining through hole 172. Fill. By hardening the filler 104, the edge portion 27 can be fixed to the first and second upper receiving portions 25a and 25b. In this embodiment, as shown in FIG. 19, the edge portion 164 of the upper slab 12 is fixed to the upper receiving portion 165 by the same procedure as described above, using the joining bolt 76. The storage tank top plate portion 11 is configured by the construction of the upper slab 12. Accordingly, the unit water tanks 2 are juxtaposed, the unit water tank 2 is divided into upper and lower unit water tank parts 5 and 6, and a water tank (as a whole) having upper and lower water tank parts 5 and 6 ( 2, FIG. 4, FIG. 5) 1 is constructed.

  In the present embodiment, in order to facilitate the entry / exit of workers to / from the unit space portion 108 and the ease of carrying materials into the unit space portion 108, the outer wall support members 9A2 at the corners and the row end portions are arranged. Between the outer wall strut members 9A3 and the adjacent outer wall strut members 9A3, 9A3 at the adjacent row ends, as shown in FIGS. The outer wall strut member 9A3 at the column end is configured as an integral object that is long in the vertical direction. Accordingly, with respect to these, as in the intermediate outer wall strut member 9B1, the labor for connecting the upper strut member 17 to the lower strut member 15 can be reduced, and the workability can be improved accordingly.

  In the present embodiment, as shown in FIG. 35, the upper slab 12 is erected so that the upper surface portion 86 of the inner wall strut member 7 has, for example, an end surface portion 221, 221 between the adjacent upper slabs 12, 12. A groove portion 222 of about 270 mm is formed. Further, as shown in FIG. 36, the upper surface portion of the surrounding frame body 224 formed by standing the outer wall strut member 9 in the circumferential direction is outside the end surface portion 221 of the upper slab 12, for example, about 450 mm. A recess 223 having a width is continuously formed in the circumferential direction. 4 to 5 and FIG. 34, concrete is cast in place on the upper surface 225, the groove portion 222, and the concave portion 223 of the installed upper slab 12 to form a cast-in-place portion 226, and the embankment is formed thereon. After that, if the asphalt pavement is performed on it, the upper space of the water tank can be used as a park or a parking lot.

  Here, a supplementary explanation of the construction process when constructing the water storage tank 1 is as follows. 37-38, FIG. 39, and FIG. 40, the integrated outer wall strut member 9A and the upper and lower split wall outer strut member 9B shown in FIG. It is a water-stopping material made of a strip-like piece such as butyl rubber, which is interposed for water stoppage. The integrated outer wall support member 9A shown in FIGS. 37 to 38 will be described. As shown in FIGS. 37 and 38A, the water stop material 335 has an L-shape or the like on one joint surface portion 37a. (Not attached to the other joint surface portion 37b) and as shown in FIGS. 37 and 38B, the upper and lower sides sandwiching the trapezoidal groove portion 130 of the vertical surface 129 constituting the pedestal portion 128. The water-stop material 335 is attached to the surface portions 150 and 151, and as shown in FIGS. 37, 38 (C) and (D), the upper surface of the intermediate receiving portion 21 (of the intermediate slab 10). The water-stopping material 335 is also attached to the horizontal placement surface 141) that supports the edge portion 20 and the upper surface of the upper support portion 25 (the horizontal placement surface 135 that supports the portion 27 of the upper slab 12). ing.

  The water blocking material 335 is also attached to the inner wall strut member 7 shown in FIG. FIG. 26 shows the pedestals 61 of the adjacent inner wall strut member rows 32 and 32 when forming the bottom 227 (FIGS. 5-6, 9, 13-14, 15, 15, 23-24) of the water tank 1. FIG. 61, the bottom concrete 230 is placed between the pedestal portion 61 of the inner wall strut member row 32 and the pedestal portion 128 of the outer wall strut member row 39.

  In addition, when arranging the in-situ portion 226 on the upper slab 12 prior to forming the spot striking portion 226, a bent protruding muscle having a horizontal protruding portion 240 in the groove portion 222 formed between the upper slabs 12, 12. In addition to projecting 241, a bent projecting muscle 245 having a horizontal projecting portion 243 is projected from the recess 223 of the outer wall strut member 9. Then, the edge portion 27 of the upper slab 12 is inserted between the horizontal protrusion 243 and the upper surface 120. Then, the horizontal protrusions 240 and 243 facing each other are appropriately connected by the connecting line 246.

  An example of the configuration of rainwater introduction into the water tank 1 will be described. In FIGS. 1 and 45, reference numeral 247 (not shown in other drawings) denotes one long side 249 of the water tank 1. And a slope for introducing rainwater provided near one short side 250. The slope 247 is inclined downward toward the other short side 252 so that the inclined portion 251 straddles the upper and lower water storage tank portions 5 and 6, and its lower edge portion 253 has a water storage reservoir. It is installed on the bottom surface 255 of the tank 1. A horizontal upper edge portion 256 of the slope 247 is connected to an inflow pipe 257 provided on the one short side 250. The rainwater introduced into the water tank 1 from the inflow pipe 257 can be naturally discharged into a river or the like from the outflow pipe 259 provided at the lower part of the water tank 1 after being temporarily stored in the water tank 1. It is made. Alternatively, it is forcibly discharged by a pump. The pump chamber for that purpose can be installed inside or outside the water tank.

  In FIG. 46, reference numeral 260 denotes a manhole provided in the upper part of the water tank 1. Upper and lower elevating ladders 261 and 262 are provided in the upper and lower water tank parts 5 and 6 so as to be connected to the manhole 260. Yes. In water tank maintenance management such as cleaning of the water tank bottom, an operator can go up and down through the upper and lower elevating ladders 261 and 262 through the opening / closing opening 263 provided in the intermediate partition 3.

  When the entire inner wall strut member row 32, the outer wall strut member row 39 and the end face plate portion 18 are connected and integrated, the inner wall strut member row 32 and the both ends thereof are arranged. When connecting and integrating the outer wall strut members 9 and 9, for example, as shown in FIGS. 47 and 48, insertion holes 265 provided in the inner wall strut member 7 and the outer wall strut member 9 at a required interval in the vertical direction are provided. Using a long PC steel rod 266a to be inserted, the whole is connected and integrated.

  FIG. 47 shows an example of this, and shows a state in which 4 to 5 inner wall strut members 7 are connected and integrated using a long PC steel rod 266a as a unit. As shown in FIGS. 47B and 47C, both edge portions of the long PC steel rod 266a are screw shaft portions 267 and 267, and the long PC steel rod 266a has, for example, five inner wall strut members. 7, 7, 7, 7 and 7 are inserted through insertion holes 265, and the front side portions of the screw shaft portions 267, 267 are accommodated in recesses 270, 270 that are recessed in the vertical surface. The In this state, nuts 271 and 271 are screwed and tightened to the screw shaft portions 267 and 267 so that the required number of the entire inner wall strut members 7 are integrated.

  FIG. 48 shows a state in which 4 to 6 outer wall strut members 9 are united and integrated in the same manner using a long PC steel rod 266a. The inner wall strut member row 32 and the outer wall strut member 9 can be connected and integrated in the same manner using a long PC steel rod 266a. When connecting and integrating in this way, in order to further stabilize the connected state, as shown by the one-dot chain lines in FIGS. 267 are connected to each other by a long nut 248, and adjacent long PC steel bars 266a and 266a are preferably integrated.

  FIG. 49 shows a connecting means for connecting the inner wall strut members 7 and 7 and the outer wall strut members 9 and 9 with one short PC steel rod 266b. The short PC steel bar 266b is inserted into the inner wall column member 7 and the outer wall column member 9 through insertion holes 265 provided at a required interval in the vertical direction, and the inner wall column member 7 is taken as an example. The connecting strips 254 and 254 provided along the longitudinal center line of the joint surface portions 31 and 31 of the member 7 are projected. Then, the nuts 268 and 268 are screwed and tightened to the both edge portions 264 and 264 of the short PC steel rod 266b which are sequentially connected by the long nut 258 in the connecting groove 254 and thus integrated, The entire required number of inner wall strut members 7 and the required number of outer wall strut members 9 are connected and integrated.

  In the water tank 1 having such a configuration, the outer wall strut member 9 configured integrally can stably support earth pressure. Further, the inner wall strut member row 32, the water reservoir top plate portion 11, and the intermediate partition portion 3 function as a beam-like body 274 (FIG. 50), so that the horizontal earth pressure acting on the water reservoir 1 can be effectively obtained. Can be supported in a dispersed state. By these, it can prevent that each said outer wall support | pillar member 9 bends and deform | transforms by earth pressure, and can build the water storage tank with a large resistance force with respect to earth pressure.

  Further, a large inspection opening 201 is formed in the intermediate partition portion 3 functioning as the beam-like body 274 by the matching of the adjacent notch openings 177 and 177. The inspection opening 201 ( FIG. 28) can be used when checking the sedimentation state or the like of the earth and sand at the water storage tank bottom 275 (FIGS. 4 to 5). The operator can walk on the connecting plate portion 180 (FIG. 50) of the intermediate partition portion 3 and check the sedimentation state of the bottom of the water storage tank 275 through the inspection opening 201. In order to ensure safety during walking, it is preferable to provide fall prevention fences on both sides of the connecting plate portion 180 and the like.

  In addition, as shown by the arrows in FIG. 51, the inspection opening 201 allows the upper and lower water storage tank parts 5 and 6 to communicate with each other to allow movement of water and air. However, when water flows into the lower water storage tank section 6, air is smoothly vented to the upper water storage tank section 5 through the inspection opening 201, so that the water to the lower water storage tank section 6 can be removed. Inflow can be performed smoothly. The movement of water in the lower water storage tank section 6 is performed through the lower communication opening section 47. After the lower water tank section 6 is full, water flows into the upper water tank section 5 through the inspection opening 201. The lateral movement of water in the upper water tank 5 is performed through the upper communication opening 46.

  Further, since the second intermediate slab 10b can reduce the amount of reinforcing bars and concrete used by the amount of the notched opening 177, the manufacturing cost can be reduced, and the amount of concrete and reinforcing bars can be reduced. The reduced weight makes it easier to handle.

  In addition to the function as the beam-like body 274 as described above, the intermediate partition portion 3 also functions as a passage for the inspection operator as described above, and the earth and sand of the water storage tank bottom 275 passes through the inspection opening 201. The function of enabling checking of the accumulation state and the like is also achieved. However, when the intermediate partition portion 3 is constituted only by the second intermediate slab 10b provided with the notch opening 177, the water storage tank 1 May become insufficient in strength.

  Therefore, in this embodiment, as shown in FIG. 3, the notch opening 177 is not provided in the both side portions 199 and 199 of the intermediate partition portion 3 as viewed in the extending direction of the inner wall column member row 32. Only the first intermediate slab 10a having a rectangular plate shape is installed, and the second intermediate slab 10b is installed only between the two side portions 199 and 199. As a result, the function of the intermediate partition 3 as the beam-like body 274 (FIG. 50) is more effectively exhibited, and the earth pressure in the length direction and the width direction of the water storage tank 1 can be supported more stably. The strength of the water storage tank 1 can be ensured as required. Note that the number of juxtaposed rows 278 of the first intermediate slabs 10a in both side portions 199, 199 of the intermediate partition portion 3 viewed in the extending direction F1 (FIG. 3) is the number of outer wall struts constituting the end face plate portion 18. The required pressure is set in consideration of the earth pressure acting on the member 9. In FIG. 3, the number of juxtaposed columns of the first intermediate slab 10a is four, but it may be set to three or five to six.

  Next, the function of the beam-like body 274 provided by the intermediate partition portion 3 when configured in this manner will be described more specifically. First, as shown in FIGS. 3 and 50, the outer wall strut members 9A1 constituting the outer wall strut member rows 39, 39 at both outer ends constituting the side plate portion 192 are arranged in the extending direction of the intermediate partition portion 3, as shown in FIGS. It is supported by a continuous support side surface 276 that continues linearly to F1. As a result, the inner surface portion 277 of each outer wall strut member 9 is stably supported by the continuous support side surface 276 over its entire width.

  In addition, as shown in FIG. 50, the intermediate partition portion 3 continues linearly in a direction F2 orthogonal to the extending direction F1, and both end portions 284, 284 thereof are the outer wall column member rows 39, 39. A first plate-like continuous beam portion 279 that abuts against the inner surface portion (inner side surface of the outer wall strut member 9) 277 is provided. The first plate-like continuous beam portion 279 is composed of the whole of the first intermediate slab 10a having a rectangular plate shape at both side portions 199, 199 of the intermediate partition portion 3, and functions as a beam-like body 274. .

  On the other hand, between the two side portions 199 and 199, as shown in FIG. 50, the first plate-like continuous beam portion 279 is formed on the inner wall strut member row 32 of the second intermediate slab 10b. Each of the connecting plate portions 180 long in the direction F2 orthogonal to the extending direction F1, the standing wall portion 53 (FIG. 11), and the cured products 280 and 280 (FIG. 11) of the filler 104 in the gap portion 196, It is configured by continuing linearly in the orthogonal direction F2. As a result, the horizontal earth pressure acting on the outer wall strut member rows 39, 39 on both sides is parallel to the parallel body 281 of the first plate-like continuous beam portions 279 (FIG. 50) arranged in parallel in the extending direction F1. Will be effectively supported.

  In FIG. 50, for convenience of explanation, the linear extension direction of the first plate-like continuous beam portion 279 is indicated by a one-dot chain line. Further, in this embodiment, as shown in FIGS. 3 and 50, since the upper communication opening 46 is provided on the end side of the inner wall support member row 32, an operator can move to the adjacent unit water tank 2. Can move safely in the flat side portions 199, 199 constructed by laying the first intermediate slab 10a.

  Further, as shown in FIG. 50, the end face plate portion 18 is supported by continuous support side surfaces 282 and 282 that are linearly continuous in the direction F2 perpendicular to the extending direction F1 of the intermediate partition portion 3. In addition, there are provided second plate-like continuous beam portions 286 that are linearly continuous in the extending direction F1 and whose both end portions 283, 283 are in contact with the inner surface portions 285, 285 of the end face plate portion 18. There are two types of the second plate-shaped continuous beam portion 286, one constituted by the inner wall strut member row parallel body 33 and one constituted by the intermediate partition portion 3. Among these, what the intermediate partition portion 3 constitutes is arranged in parallel in the extending direction F1 formed between the beam-like portions 289, 289 on both sides formed by the entire first intermediate slab 10a. The wide portions 181 and 181 are combined with intermediate beam portions 290 and 290 formed by the wide portions 181 and 181. In FIG. 50, for convenience of explanation, the linear extension direction of the second plate-shaped continuous beam portion 286 is indicated by a two-dot chain line.

  In the present embodiment, only the first intermediate slab 10a having a rectangular plate shape not provided with the notched opening 177 is constructed on both side portions 199, 199 of the intermediate partition portion 3, It is more preferable because many portions of the horizontal earth pressure acting on the outer wall strut member rows 39, 39 on both sides can be supported by the rows of the first intermediate slabs 10a.

  Here, about the preferable aspect of the water storage tank 1 which has the said 1st plate-shaped continuous beam part 279 and the said 2nd plate-shaped continuous beam part 286, if the whole structure is put together, It is as follows. That is, the water storage tank 1 is provided with intermediate receiving portions 21 and 21 for supporting the edge portion 20 in the longitudinal direction of the intermediate slab 10 from below at the intermediate portion in the vertical direction of the left and right standing surfaces 13 and 14. Inner wall strut member 7 in which upper receiving portions 25, 25 for supporting edge portions 27, 27 in the length direction of upper slab 12 from below are provided on upper portions of left and right standing surfaces 13, 14, and an inner vertical surface An intermediate receiving portion 21 for supporting the edge portion 20 of the intermediate slab 10 from below is provided at an intermediate portion in the vertical direction of the upper 26, and an edge portion 27 of the upper slab 12 is provided on the upper side of the inner standing surface 26. And an outer wall strut member 9 provided with an upper receiving portion 25 for supporting the upper wall from below.

  The inner wall strut members 7 constitute inner wall strut member rows 32, 32 by arranging the joint surface portions 31, 31 as standing surfaces on the front and rear sides thereof in contact with each other, thereby forming inner wall strut member rows 32, 32. The inner wall strut member row parallel body 33 is configured by arranging 32 and 32 in the left-right direction at a required interval. Further, the outer wall strut member 9 has joint surface portions 125, 125 as standing surfaces at both ends on the outer side of the inner wall strut member rows 32a, 32a at both outer ends constituting the inner wall strut member row parallel body 33. The outer wall strut member row 39 is configured to be spaced apart from the inner wall strut member row 32a by arranging them in parallel with each other. The intermediate slab 10 is constructed between the intermediate receiving portions 21 and 21 facing each other at the same height, and the edge portion 20 is fixed to the intermediate receiving portion 21 to constitute the intermediate partition portion 3. Further, the upper slab 12 is constructed between the upper receiving portions 25 and 25 facing each other at the same height, and the end portion 27 is fixed to the upper receiving portion 25 so that the top plate of the water storage tank The part 11 is configured.

  Further, both side portions 199, 199 of the intermediate partition portion 3 viewed in the extending direction of the inner wall column member row 32 are constructed by laying the intermediate slab 10 having a rectangular plate shape, and the both side portions 199. , 199 to 199 is constructed by laying an intermediate slab 10 in which left and right notched openings 177 and 177 are formed by notching both side portions viewed in the extension direction inward. An inspection opening 201 for visually observing the bottom of the water storage tank is formed by matching the notch openings 177 and 177 adjacent to each other when viewed in the extending direction.

  Further, both end portions of the unit water tank 2 formed between the inner wall strut member rows 32 and 32 and between the inner wall strut member row 32 and the outer wall strut member row 39 are covered with the end plate 18. Yes. The outer wall strut members 9 constituting the outer wall strut member rows 39, 39 on both sides are supported by continuous support side surfaces 282 that are linearly continuous in the extending direction of the intermediate partition portion 3, and The intermediate partition 3 has a first plate-like continuous beam that is linearly continuous in a direction perpendicular to the extending direction and whose both end portions 284 and 284 are in contact with the inner surface portions 277 of the outer wall column member rows 39. A portion 279 is provided.

  The end face plate portion 18 is supported by a continuous support side surface 282 that is linearly continuous in a direction orthogonal to the extension direction of the intermediate partition portion 3, and the intermediate partition portion 3 is supported by the extension portion. A second plate-like continuous beam portion 286 is provided which is linearly continuous in the direction and whose both end portions 283 and 283 are in contact with the inner surface portions 285 and 285 of the both end face plate portions 18 and 18.

  In the water storage tank 1, an intermediate slab 10 having a notch opening 177 provided only on one side portion seen in the extending direction is constructed between the both side parts 199, 199, and the notch opening. In addition to being configured to form the inspection opening 201 by the portion 177, the intermediate slab 10 in which the inspection opening 177 for visually observing the bottom of the water tank is constructed is constructed. There is also.

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) FIGS. 52 to 53 show another embodiment of the upper support member 17 constituting the intermediate outer wall support member 9B1.

  52 to 53 are positioned on both sides of the lower portion of the upright surface 26 on the inner side of the upper standing wall portion 93 so that the side support pieces 291 and 291 protrude integrally with the upper standing wall portion 93. It is installed. The lower surfaces 296 and 296 of the left and right side support pieces 291 and 291 are formed as horizontal planes provided above the lower surface portion 97 of the upper standing wall portion 93. However, as shown in FIG. 53, the upper support member 17 is suspended so that the vertical joining bars 103 are inserted into the insertion holes 87 of the corresponding sleeves 85, and the lower surface portion (upper wall of the upper support member 17). When the lower surface portion 97 of the portion 93 is brought into contact with the upper end surface 51 of the support base portion 50, the lower surfaces 296 and 296 of the side support pieces 291 and 291 become horizontal with the side edge portion 71 of the intermediate slab 10. It is designed to be located on the upper side of the upper surface 52. Then, as shown in FIG. 53, by inserting the required number of liner plates 311 having a required thickness into the height adjustment gap 310 formed between the horizontal lower surface 296 and the upper surface 52 of the edge portion 20. The upper support member 17 can be erected on the upper end 16 of the lower support member 15 in a substantially vertical state. The side support pieces 291 projecting in this way can prevent the upper support member 17 from falling down until the upper support member 17 is connected to the lower support member 13.

  54 to 55 show other modes of the upper support member 17, and the side support pieces 291 and 291 are positioned on both sides of the lower portion of the upright surface 26 on the inner side of the upper wall portion 93 so that the side support pieces 291 and 291 are on the upper side. However, the side support pieces 291 and 291 are different from those described above in the same manner as in the case shown in FIGS. That is, the upper strut member 17 has a case where the end surface portion 312 of the edge portion 71 of the intermediate slab 10 supported by the intermediate receiving portion 163 provided at the upper end 16 of the lower strut member 15 is shown in FIGS. Rather than being configured as such a vertical surface, at the upper end edge 298 of the lower vertical surface 297, it is formed as a bent surface in which an inclined surface 299 that is inclined upward toward the outside is continuously provided. At the same time, the side support piece 291 is formed as an inclined surface in which the outer surface 302 of the protruding portion 301 protruding below the lower surface portion 97 of the upper standing wall portion 93 can come into contact with the inclined surface 299. . When the upper column member 17 is in the suspended state in which the lower surface portion 97 of the upper standing wall portion 93 is brought into contact with the upper end surface 51 of the support base portion 50, the inner side surface 305 of the protruding portion 301 is supported. The lower surface 306 of the projecting portion 301 is in a state of being lifted from the lower horizontal mounting surface 141 while being substantially in contact with the side surface 82 of the base portion 50.

  In this state, the horizontal lower surface 309 of the side support piece 291 that is continuous with the upper end edge 303 of the inclined surface 299 is located above the side edge portion 71 of the intermediate slab 10. However, the lower surface portion 97 of the upper standing wall portion 93 is formed between the upper surface 52 of the side edge portion 71 and the horizontal lower surface 309 in a state where the upper surface 51 of the support base 50 is in contact. By inserting the required number of liner plates 311 having a required thickness into the height adjustment gap 310, the vertical state of the upper support member 17 can be roughly adjusted.

  FIG. 56 shows another aspect of the upper column member 17, and the side support pieces 291 and 291 are positioned on both sides of the lower portion of the inner standing surface 26 of the upper standing wall portion 93, and the upper standing wall The lower surface 296 of the side support piece 291 is formed in a horizontal plane flush with the lower surface portion 97 of the upper wall portion 93.

  In the present embodiment, the upper end surface 51 of the support base 50 protruding from the upper edge portion of the lower support member 15 is supported by the second intermediate receiving portion 21b as shown in FIGS. The intermediate slab 10 is positioned above the horizontal upper surface 52 of the edge portion 71 in the width direction of the intermediate slab 10.

  However, when the upper support member 17 is connected to the upper end 16 of the lower support member 15 in an upright state, as shown in FIG. The upper support member 17 is suspended so as to be inserted into the insertion hole 87. When suspended in this manner, the lower surface portion 97 of the upper standing wall portion 93 comes into contact with the upper end surface 51 of the support base portion 50 as shown in FIG. In this state, the lower surface portion 97 of the upper standing wall portion 93 is in contact with the upper end surface 51 of the support base portion 50, and the height between the upper surface 52 of the edge portion 71 and the horizontal lower surface 296 is high. A height adjusting gap 310 is formed. By inserting the required number of liner plates 311 having a required thickness into the height adjusting gap 310, the vertical state of the upper support member 17 can be adjusted.

(2) FIG. 42 shows a case where the outer wall column member 9 at the corner is divided into a lower column member 15 and an upper column member 17, and FIG. 43 shows the outer wall column member at the row end. 9 is divided into a lower support member 15 and an upper support member 17.

(3) FIG. 58 and FIG. 59 show the case where the outer wall strut member 9 constituting the end face plate portion 18 is formed in a plate shape in which a portion for supporting the intermediate slab 10 and the upper slab 12 from below is omitted. Is shown. When the outer wall strut member 9 is an integral type, as shown in FIG. 58, the edge portion 307 of the intermediate partition portion 3 is positioned at an intermediate portion in the vertical direction, and the water tank top plate portion 11 The edge portion 308 is positioned at the upper part in the vertical direction. Further, when the outer wall strut member 9 is of a vertically divided type, as shown in FIG. 59, the edge portion 307 of the intermediate partition portion 3 is positioned above the lower strut member 15, An edge portion 308 of the water tank top plate portion 11 is positioned above the upper support member 17.

(4) FIG. 60 shows the case where the upper support member 17 is provided with the sleeve 85 and the lower support member 15 is provided with the vertical joining bars 103 on the contrary. The sleeve 85 has a plurality of lower end open sleeves 85 at the lower end portion of the upright wall portion 93 on the upper support member 17 so that the lower end 313 is opened at the lower end surface 314 of the upright wall portion 93, It is located on both the left and right sides of the lower end surface 314, and is embedded in large numbers with a required interval in the front-rear direction. The lower edge portion 315 of the upright wall portion 93 above the upper support member 17 communicates with upper and lower openings 316 and 317 provided on the upper and lower ends of the sleeve 85 and is opened at the inner vertical surface 94. Upper and lower communication holes 319 and 320 are provided in a horizontal state. Further, the number of the vertical joining bars 103 inserted into the respective sleeves 85 protrudes upward from the upper end surface 51 of the support base 50.

  However, in a state where the vertical joining bar 103 is inserted into the insertion hole 87 of the sleeve 85, an injection pipe of a filling device (not shown) is inserted into the lower communication hole 320, and the injection pipe and the lower communication hole 320 are inserted. Then, a filler 104 such as non-shrink mortar or grout is injected into the insertion hole 87 at a required pressure. By this injection, the filler 104 is exhausted from the open end 321 of the upper communication hole 319, and the filler 104 leaks from the open end 321. It can be confirmed that 104 is filled. Thereafter, as shown in FIG. 60, the upper and lower open ends 321 and 322 are closed with a plug 323. When the filling material 104 thus filled is cured, the upper support member 17 is connected to the upper end 16 of the lower support member 15 in a stable standing state, and the outer wall support member 9 is configured. .

  When the sleeve 85 is provided on the lower support member 15 in the same manner as described above, the upper and lower openings 316 and 317 are provided on the upper and lower ends of the side portion of the sleeve 85, for example, as shown by a one-dot chain line in FIG. In some cases, upper and lower communication holes 319 and 320 that communicate with the upper and lower openings and open at the inner vertical surface may be provided.

(5) FIG. 61 shows a case where the support base 50 is omitted in the intermediate outer wall strut member 2B1 of the upper and lower split type. Accordingly, the lower end surface 97 of the upper support member 17 is the upper end surface of the lower support member 15 (the horizontal mounting surface 141 that is the upper surface of the intermediate receiving portion 163 that supports the edge portion 71 in the width direction of the intermediate slab 10 from below). In this state, the vertical joining bar 103 protruding from the lower end surface 97 of the upper column member 17 is connected to the upper end portion 324 of the lower column member 15 in the same manner as described above. The upper support member 17 is connected to the upper end 16 of the lower support member 15 in an upright state by being inserted into the insertion hole 87 of the sleeve 85 provided at the upper end through the filler 104. Has been made.

(6) FIG. 62 shows another embodiment of the outer wall strut member 9 of the upper and lower split type, and shows the case where the inner surface 94 of the lower strut member 15 is formed in a frame shape. FIG. 63 shows the vertically integrated outer wall strut member 9, and the lower portion of the inner vertical surface 94 is configured in a frame shape, and the intermediate receiving portion 21 has the edge portion 21 of the intermediate slab 10. , 71 is supported.

(7) Not all of the intermediate outer wall strut members 9B1 constituting the end face plate portion 18 are divided into upper and lower parts, but it is only possible to form an entrance / exit that allows an operator to enter and exit. It can also be configured with the idea of

  FIG. 64 shows an intermediate width of, for example, 1500 mm between the outer wall column member 9A2 at the edge and the outer wall column member 9A3 at the row end and between the outer wall column members 9A3 and 9A3 at the adjacent row ends. Only one of the outer wall strut members 9B1 is configured as a vertically divided type. The outer wall strut member 9A4 adjacent to it is configured as a vertically integrated type, thereby improving the construction efficiency of the water storage tank.

(8) FIG. 65 shows the outer wall strut member 9 that constitutes the outer wall strut member row 39, 39 and the outer wall strut member 9 that constitutes the end face plate portion 18 as a vertically divided outer wall strut member. It shows the case where it comprises. That is, only the lower strut member 15 of the upper and lower split type outer strut member 9 is standing, but the upper strut member 17 is not standing. In this state, there is no upper side wall portion on both outer end sides and the end face plate portion side of the inner wall strut member row parallel body 32.

  Therefore, in the present embodiment, as described above, various operations such as entry / exit of workers into / from the unit space 108 and loading of materials can be facilitated, and the outside of the unit spaces 108, 108 at both ends. The construction work of the intermediate slab 10 in the portions 325 and 325 can be easily performed, and a wide temporary storage place and a wide construction management place can be formed on the upper surface of the slab formed by the construction of the intermediate slab 10. It is preferable.

(9) The inner wall strut member 7 may be configured as a vertically divided type. For example, as shown in FIGS. 66 to 67, the inner wall strut member 7 is configured by connecting an upper strut member 328 to an upper end 327 of a lower strut member 326 in an upright state. The lower strut member 326 has intermediate receiving portions 21 and 21 for supporting the edge portions 20 and 20 of the intermediate slab 10 from below (the first intermediate receiving portion 21a) on the upper portions of the left and right standing surfaces 329a and 330a. , 21a) and upper receiving portions 25, 25 for supporting the edge portions 27, 27 of the upper slab 12 from below on the upper portions of the left and right standing surfaces 329b, 330b of the upper support member 328 (the first support members 25, 25). 1 upper receiving portions 25a, 25a) are provided. As shown in FIG. 68, the inner wall strut member 7 can be formed as an inner wall strut member row 32 by arranging the joint surface portions 31, 31 as front and rear surfaces thereof in contact with each other in parallel. The inner wall strut member row 32 can be formed in parallel by arranging the inner wall strut member rows 32 in the left-right direction at a required interval.

  When the inner wall strut member 7 is configured in a vertically divided manner in this way, when the upper strut member 328 is connected to the upper end 327 of the lower strut member 326 in an upright state, for example, as shown in FIG. In order to adjust the vertical state of the member 328 and maintain this adjusted state, on the left and right sides of the upper column member 328, the upper surface portions 52 and 52 of the intermediate slabs 10 and 10 on both sides and the left and right sides of the upper column member 328 The upright surfaces 329b and 330b are preferably connected using support devices 204 and 204 having the same configuration as described above.

(10) FIGS. 69 to 70 show a cross beam 333 which is assembled so as to intersect in a lattice shape in plan view and extends in the front-rear direction F1 which is the direction in which the inner wall strut members 7 are arranged side by side. In the construction space portion 193 in which there is a retaining wall support 336 provided with a plurality of upper and lower cutting beam frames 335 having a cutting beam 334 extending in the vertical direction, the outer wall column member 9 and the inner wall column member 7 are vertically The case of using a split type is shown. When the cut beams 333 and 334 interfere with the outer wall strut member 9 and the inner wall strut member 7, only the lower strut member 15 in the outer wall strut member 9 is erected, so that the upper strut member 17 stands upright. In the portion where the upper column members 17 and 326 are not erected, only the lower column member 326 in the inner wall column member 7 is erected, and the upper column member 328 is not erected. The cut beams 333 and 334 are missing. In addition, the said both cross beams 333,334 may exhibit the cross state which is not orthogonal.

(11) The vertically divided inner wall strut member 7 is a part of the inner wall strut member 7 constituting the inner wall strut member row 32 of the selected one row or plural rows of the inner wall strut member row parallel body 33. Or, as a whole, there may be used an upper and lower split type member in which the upper column member 17 is connected to the upper end 16 of the lower column member 15 in an upright state. FIG. 71 shows an example of this. For the selected two inner wall strut member rows 32A and 32B, an upper and lower divided inner wall strut member 7a is used in the middle portion thereof, and the remaining inner wall strut member 7b is used. Is used as a whole. In the case of such a configuration, prior to erecting the upper support member 328, a wide working space can be secured and the intermediate slab 10 can be easily installed without any obstacles, whereby the intermediate partition portion 3 can be efficiently installed. It can be configured. In addition, in a state where the upper support member 328 is not erected, a wide temporary material storage place and a wide construction management room can be provided in a preferable dispersed state in the construction space, which can contribute to improvement in construction efficiency.

  FIG. 72 shows another aspect in which a part of the inner wall strut member 7 constituting the selected inner wall strut member row 32a is configured using a two-divided inner wall support member 7a, and the intermediate partition 3 However, as shown in FIGS. 2 to 3, for example, the both side portions 199 and 199 are constructed by laying the first intermediate slab 10a having a rectangular plate shape, An intermediate slab 10b in which notched openings 177 and 177 are formed is constructed. In the case of such a configuration, the hooking member 206 cannot be attached to the portion where the notched opening 177 exists in the portion where the intermediate slab 10b in which the notched opening 177 is formed is provided. In addition, it is difficult to support the upper support member 328 constituting the inner wall support member 7 with the support device 204. Therefore, in the place where the intermediate slab 10b exists, the inner wall strut member 7b that is configured as a whole may be erected. And in the place where the said intermediate slab 10a which exhibits a rectangular plate shape exists, since it is easy to temporarily support the upper support | pillar member 17 with the support apparatus 204, the ease of construction of the intermediate slab 10 is also considered in this part. Then, the two-divided inner wall strut member 7a may be erected.

(12) Even when the upper support member 17 constituting the outer wall support member 9 is formed by protruding the side support pieces 291 and 291 as described above, The member 328 may be supported by the left and right support devices 204, 204.

(13) In FIG. 73, when the outer wall strut member 9 is configured, the upper strut member 17 is erected on the upper end 16 of the lower strut member 15, and then the vertical steel plate 336 is used to An example in which the nuts 337a and 337b are tightened and connected and integrated is shown. As shown in FIG. 73C, the PC steel rod 336 has a screw shaft portion 339 that forms a lower edge portion thereof fixed by a nut 337b in a recess 340 provided on the vertical surface of the lower support member 15. At the same time, the upper portion 341 protrudes from the upper end 16 of the lower support member 15. The protruding upper portion 341 is inserted into an insertion hole 342 having an open lower end provided in the upper column member 17, and a screw shaft portion 343 that forms an upper edge portion is provided on the upper surface portion of the upper column member 17. The upper support member 17 is connected to the upper end 16 of the lower support member 15 in a standing state by being fastened by the nut 337a in the recessed portion 344. In addition, the lower support | pillar member 15 and the upper support | pillar member 17 can also be connected using connection metal fittings, such as an angle-shaped connection member.

(14) In the upper and lower two-tank type water storage tank 1 according to the present invention, when the end face plate portion 18 is configured using a flat plate made of precast concrete, for example, as shown in FIG. The flat body 229 to be exhibited (about 5 to 6 m) is used, and this may be configured by stacking a plurality of the plates with the short side in the vertical direction. Further, the end face plate portion 18 may be constituted by a flat end face plate made of cast-in-place concrete.

(15) Further, the shape of the end face plate portion 18 of the water storage tank 1 according to the present invention is not linear in a plan view depending on the topography of the construction site, but has a step shape as shown in FIGS. 75 to 76, for example. It may be configured as follows. Alternatively, the outer shape 345 in plan view of the water storage tank 1 may be configured in a U shape or the like as shown in FIG. 75 to 77, the same components (32, 32a, 33, 39, 188, 203) as those described above are attached to the same components as described above.

(16) In the first intermediate slab 10a, as shown in FIG. 78, for example, as shown in FIG. 78, the first and second plate-like continuous beam portions 279 and 286 are not affected. In order to further smooth the air venting at both side portions as viewed in the extending direction F1, an air vent opening 346a in an independent state may be provided as appropriate. The air vent opening 346a can be formed as a circular hole having a diameter of 150 mm, for example. Alternatively, as shown in FIG. 79, the first intermediate slabs 10a, 10a adjacent to each other in the extending direction F1 are provided by providing a notch 349 in a side portion of the first intermediate slab 10a viewed in the extending direction F1. An air vent opening 346b may be provided between them. In addition, these air vent openings 346a and 346b can also be used as openings for checking the water tank bottom 275.

(17) FIGS. 80 to 84 show another embodiment of the second intermediate slab 10b. In the second intermediate slab 10b shown in FIG. 80, a notch opening 177 is formed only at one side portion thereof. Is provided. The second intermediate slab 10b shown in FIG. 81 is provided with an independent opening 347 instead of the notched opening 177 as described above. Also, the second intermediate slab 10b shown in FIG. 82 is formed in an H shape in a plan view, and the wide portions 181 and 181 on both sides are connected by a linear connecting plate portion 180. In the second intermediate slab 10b shown in FIG. 83, independent openings 347 and 347 adjacent to each other in the direction F2 orthogonal to the extending direction F1 are provided via the intermediate connecting plate 348. The intermediate connecting plate portion 348 is provided with a plurality of, for example, four inserts 351 opened at the upper surface 350 at a required interval. In FIG. 83, two rows are provided. For example, as shown in FIGS. 84A and 84B, the insert 351 can be used for screwing the fixing bolt 210 for fixing the hooking member 206 constituting the support device 204. . Since a plurality of the inserts 351 are provided, by selecting the insert 351 at a required position, as shown in FIG. 84 (A), between the upper strut member 17 and the second slab 10b, The support shaft 207 can be attached in an inclined state.

(18) In the above embodiment, the second intermediate slab 10b having the notch opening 177 and the independent opening 347 is installed in the side portion 200, but the water storage tank is provided through the inspection opening 201. As long as the bottom portion 275 can be inspected, the first intermediate slab 10a may be partially installed.

(19) The first and second intermediate slabs 10a and 10b having a rectangular shape include those having a rectangular plate shape in addition to the rectangular plate shape described above.

(20) FIG. 85 shows another aspect of the first intermediate receiving portion 21a of the inner wall strut member 7 of the upper and lower split type, and FIG. 86 shows the first of the inner wall strut member 7 of the integrated type. The other aspect of the intermediate | middle receiving part 21a is shown.

(21) The intermediate partition 3 may be omitted entirely or partially as long as a reservoir that can resist earth pressure can be constructed. For example, in the case shown in FIG. 3, the intermediate slab may be partially omitted for one row or a plurality of rows of the unit water tank 2.
When comprised in this way, the number of intermediate slabs to be used can be reduced, and the construction labor for the construction can be reduced.

(22) Each of the lower protrusion constituting the pedestal portion 128 of the lower strut member 15 and the integral outer wall strut member 9 and the lower protrusion constituting the pedestal portion 61 of the inner wall strut member 7 respectively. In order to improve the stability of the standing state in a state where the lower column member 15 and the inner wall column member 7 are placed on the foundation concrete 186, the protruding amount of the column may be larger than the case illustrated above. .

(23) Instead of refilling the outer portion of the surrounding frame 189 as described above, an operator may be able to move by crossing a pier appropriately.
87 to 89 show the case where the upper column member 328 is connected to the upper end 327 of the lower column member 326 in an upright state to form the inner wall column member 7, and the left and right sides of the standing wall portion 353 above the upper column member 328 are shown. In this case, side support pieces 354 and 354 are provided integrally with the upper wall portion 353 so as to be positioned on both sides of the lower portions of the vertical surfaces 329b and 330b. The vertical state of the upper column member 328 can be adjusted using the side support pieces 354 and 354 in the same manner as described for the two-divided outer wall column member 9. Further, the side support pieces 354 and 354 can prevent the upper support member 328 from falling until the upper support member 328 is connected to the lower support member 326 as required.

(24) The water-stopping material 335 can be attached by applying a water-stopping resin such as an epoxy resin or a urethane resin in addition to the above-mentioned band-like piece made of butyl rubber or the like.

DESCRIPTION OF SYMBOLS 1 Water tank 2 Unit water tank 3 Middle partition part 5 Upper water tank part 6 Lower water tank part 7 Inner wall strut member 9 Outer wall strut member 10 Intermediate slab 11 Water tank top plate part 12 Upper slab 18 End face plate part 20 Middle slab Edge portion 21 Intermediate receiving portion 25 Upper slab 27 Edge portion of upper slab 32 Inner wall strut member row 33 Inner wall strut member row parallel body 39 Outer wall strut member row 43 Lower unit water tank portion 45 Upper unit water tank portion 50 Upper support portion 85 Sleeve 103 Vertical joining bar 104 Filler 201 Inspection opening 204 Support device 291 Side support piece 311 Liner plate 326 Lower support member 328 Upper support member 333 Cutting beam 334 Cutting beam

Claims (3)

A water storage tank in which an intermediate partition is formed by disposing an intermediate slab at an intermediate part in the vertical direction, and a water tank top plate part is formed by disposing an upper slab at the upper part in the vertical direction. It is an outer wall strut member for the construction of a water storage tank used for constructing the outer wall portion of the lower strut, and is divided into a lower strut member and an upper strut member, and the upper strut member is erected at the upper end of the lower strut member The upper support member is provided with an intermediate receiving portion for supporting the edge portion of the intermediate slab from below, and the upper support member is provided with an edge of the upper slab. An upper receiving portion is provided to support the portion from below , and a side support piece is positioned at a lower portion of an upright wall portion on the inner side of the water storage tank of the standing wall portion on the upper support member. Is protruded to the side, and the side support piece By interposing a liner plate between the end and the upper surface of the edge portion of the intermediate slab supported by the intermediate receiving portion, the upper column member stands in a substantially vertical state on the upper end of the lower column member. An outer wall strut member for constituting an upper and lower two tank type water storage tank, characterized in that it is provided .   A support pedestal is projected upward from the upper end of the lower support member, and the upper support member is connected to the upper end of the lower support member as an upper end surface of the support support in an upright state. 2. The intermediate receiving portion is provided in a portion of the upper end portion that is located on the inner side of the water storage tank than the support base portion. The outer wall support | pillar member for upper and lower two tank type water storage tank structure of description.   A large number of open upper end sleeves opened at the upper end surface of the support base are embedded in the upper end portion of the lower support member, and the upper support member is inserted into the insertion hole of each sleeve at the lower end surface. The vertical struts to be protruded in a downward direction, wherein the upper and lower two tank type water storage tank structure outer strut members according to claim 2.

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