JP2006348583A - Construction method of civil engineering structure and civil engineering structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method of a civil engineering structure and the civil engineering structure, firmly integrable in the vertical direction, with heavy weight, by using a surface panel unit. <P>SOLUTION: This civil engineering structure D covering a surface of a construction surface 1a is constructed by successively stacking a surface panel unit HU having a surface panel material 20, an anchor material 21 and a resistance increasing member 22 upward in a stage shape from below. In a first process, the surface panel material 20 is arranged in a predetermined position in an attitude state of extending the anchor material 21 toward the construction surface 1a. In a second process, a partition material 30 is arranged between the surface panel material 20 and the resistance increasing member 22. In a third process, a back-filling material 40 is filled on the reverse surface side of the partition material 30. In a fourth process, filling concrete 50 is filled between the surface panel material 20 and a partition plate 30 every time when passing through the third process or passing through the third process in a plurality of times, and a connecting member 60 is arranged for connecting the mutual upper-lower filing concretes 50. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a construction method for a civil engineering structure and a civil engineering structure using a surface panel unit.

  Recently, in the construction of civil engineering structures such as revetments and retaining walls, there is a tendency to increase the number of structures constructed using surface panel units as shown in Patent Document 1. That is, the front panel unit includes a front panel member that is horizontally long, a long and narrow anchor member that extends from the back side of the front panel member, and a resistance increasing member that is attached to the tip of the anchor member. Units are stacked in order from the bottom to the top, and a backfill material is filled on the back side of the front panel material, and an anchor material and a resistance increasing member are embedded in the backfill material.

  The civil engineering structure constructed using the surface panel unit as described above has the following various advantages. That is, since the surface shape of the civil engineering structure is constituted by the surface panel material, the surface of the surface panel material is set to a desired shape, for example, a pseudo stone imitating natural stone, according to the surrounding landscape. The degree of freedom is high. Further, the surface panel material, that is, the surface panel unit is stably held as a whole by the resistance increasing member embedded in the backfill material. Of course, the backfilling material also has high drainage, and the construction cost is lower than when the entire backfilling material is replaced with concrete. Especially, backfilling materials such as crushed stones in the vicinity of construction of civil engineering structures are used. The construction cost when used for is considerably low. Furthermore, since the front panel unit is light in weight, it is simple and easy (low transport cost), and has various advantages such as excellent workability as a whole. In addition to the above, by forming the horizontally long surface panel material by connecting a plurality of block materials arranged in series in the horizontal direction with a connecting line, a bending surface ( Construction is also possible for curved surfaces.

  By the way, in civil engineering structures, a considerably large weight is required as the weight of the part to be a block, and the block part may be required to be firmly integrated in the vertical direction. For example, in the case of a retaining wall covering a cut portion on the side of the road, a large weight of 350 kg or more per square meter may be required, and it may be required to be firmly integrated in the vertical direction. In response to such demands, if the above-described front panel unit is used to construct, the weight is insufficient, and depending on the backfill material, the top panel unit itself cannot be expected to be firmly integrated in the vertical direction. The above-described requirements cannot be met with the conventional method of using the front panel unit. From this point of view, it is conceivable to increase the thickness per unit volume by increasing the thickness of the surface panel material that is the main member constituting the surface panel unit, but in this case, the surface panel material is thin. The advantage of Tezuma will be greatly impaired, and the demand for strong integration in the vertical direction cannot be satisfied.

Japanese Patent Application No. 2003-82638

  The present invention has been made in view of the circumstances as described above, and its purpose is to increase the weight per unit volume while fully utilizing the advantages of the surface panel unit and to be strong in the vertical direction. It is an object of the present invention to provide a construction method of a civil engineering structure and a civil engineering structure that can be integrated with each other.

In order to achieve the above-mentioned object, the following solution technique is adopted in the construction method of the civil engineering structure in the present invention. That is, as described in claim 1 in the claims,
A front surface panel unit having a horizontally long front panel material, an elongated anchor material extending from the back surface side of the front surface panel material, and a resistance increasing member attached to the tip of the anchor material is sequentially stacked from the bottom to the top. Then, in the construction method of the civil engineering structure that constructs the civil engineering structure that covers the surface of the construction surface,
A first step of installing the surface panel unit at a predetermined position spaced from the construction surface in a posture state in which the anchor material extends toward the construction surface;
After the first step, on the back side of the front panel material and on the front side of the resistance increasing member, a second step of arranging a partitioning material for partitioning the backfill material and the intruded concrete;
After the second step, a third step of filling and filling the backside material on the back side of the partition material, and burying the resistance increasing member and the anchor material on the back side of the partition plate by the backfill material; ,
Each time the third step is performed, or every time the third step in which the surface panel unit is stacked in a plurality of stages is performed a plurality of times, the concrete is filled between the surface panel material and the partition plate. And a fourth step of installing a connecting member for connecting the upper and lower trunk concretes in the trunk concrete;
With
By constructing a civil engineering structure of a predetermined height by repeating each of the above steps,
It is like that.

Preferred embodiments based on the above solution are as described in claims 2 to 10 of the claims. That is,
The anchor material extends rearward from an intermediate position in the vertical direction of the surface panel material,
As the partition plate, a pair of upper and lower divided partition plates having a height that is substantially half of the height in the vertical direction of the surface panel material is used, and the pair of upper and lower divided partition plates sandwich the anchor material from the vertical direction. Arranged,
(Claim 2).

  The partition plate is made to be the same height as the vertical direction of the surface panel material, and a notch is formed in the partition plate so as to open downward and to insert the anchor material from below. (Corresponding to claim 3).

  The partition plate is connected to the anchor material before filling and filling the backfill material, so that movement in the longitudinal direction of the anchor material is restricted (Claim 4). Correspondence).

On the back side of the surface panel material, a plurality of constraining pillar portions having the same height as the height in the vertical direction of the surface panel material are formed integrally with a gap in the horizontal direction,
On the conservative pillar portion of the surface panel material located below, the conservative pillar portion of the surface panel material located above is placed,
The partition plate is disposed in a restricted state, but moves toward the surface side of the surface panel material by the conservative pillar portion,
The intruded concrete is filled in the space between the constraining pillars adjacent in the lateral direction.
(Corresponding to claim 5).

  The partition plate may be disposed in a state in which the partition plate is in contact with the back surfaces of at least two adjacent column portions (corresponding to claim 6).

A mounting groove extending in the up and down direction is formed on each of the left and right side surfaces of the retaining column part,
The partition plate is positioned between the two adjacent column portions, and the left and right ends thereof are disposed in a state of being fitted into the mounting groove.
(Corresponding to claim 7).

  The partition plate may be formed of a synthetic resin perforated panel material having a large number of small holes that do not allow the backfill material to pass through (corresponding to claim 8).

Before the backfill material is filled, a regulating member is disposed between the surface panel material and the partition plate to restrict the partition plate from moving toward the surface panel material side,
The restricting member extends by a wire in a vertical direction and is disposed along the surface of the partition plate, and a first vertical portion is disposed in the vertical direction along the back surface of the front panel member. 2 vertical portions, a connecting portion that extends horizontally and connects the upper ends of the first vertical portion and the second vertical portion, and extends horizontally from the lower end of the first vertical portion along the surface of the partition plate A shape having a first extending leg and a second extending leg extending in a direction opposite to the first extending leg along the back surface of the front panel member from the lower end of the second vertical part. Set to
(Corresponding to claim 9).

  The construction surface may be a cut surface formed on a road side surface (corresponding to claim 10).

In order to achieve the above object, the following solution is adopted for the civil engineering structure of the present invention. That is, as described in claim 11 in the claims,
A construction surface constituted by using a surface panel unit having a horizontally long surface panel material, an elongated anchor material extending from the back surface side of the surface panel material, and a resistance increasing member attached to a tip portion of the anchor material. In civil engineering structures covering the surface,
The plurality of front panel units are stacked in a vertical direction in a state where the anchor material extends toward the construction surface and the surface panel material is installed at a predetermined position separated from the construction surface. And
On the back side of the front panel material and on the front side of the resistance increasing member, a partition material for partitioning the backfill material and the intruded concrete is disposed,
A backfill material is filled on the back side of the partition material, and the anchor member on the back side of the resistance increasing member and the partition plate is embedded by the backfill material,
Between the surface panel material and the partition plate is filled with concrete, and upper and lower concretes are connected by a connecting member embedded in the concrete.
It is like that.

A preferred mode based on the above solution is as described in claims 12 and below in the scope of claims. That is,
The partition plate may be connected to the anchor material so as to restrict movement of the anchor material in the longitudinal direction (corresponding to claim 12).

On the back side of the surface panel material, a plurality of constraining pillar portions having the same height as the height in the vertical direction of the surface panel material are formed integrally with a gap in the horizontal direction,
On the conservative pillar portion of the surface panel material located below, the conservative pillar portion of the surface panel material located above is placed,
The partition plate is arranged in a restricted state, but moves toward the surface side of the surface panel material by the conservative pillar portion,
The intruded concrete is filled in the space between the constraining pillars adjacent in the lateral direction,
(Claim 13).

Between the surface panel material and the partition plate, a regulating member that restricts the partition plate from moving toward the surface panel material side is disposed,
The restricting member extends by a wire in a vertical direction and is disposed along the surface of the partition plate, and a first vertical portion is disposed in the vertical direction along the back surface of the front panel member. 2 vertical portions, a connecting portion that extends horizontally and connects the upper ends of the first vertical portion and the second vertical portion, and extends horizontally from the lower end of the first vertical portion along the surface of the partition plate A shape having a first extending leg and a second extending leg extending in a direction opposite to the first extending leg along the back surface of the front panel member from the lower end of the second vertical part. Set to
(Corresponding to claim 14).

According to the first aspect of the present invention, the following various effects can be obtained.
The surface panel material is integrated with the trunk concrete and can secure a large weight per unit volume.
By the connecting member, the incline concrete is firmly integrated in the vertical direction over the entire length in the vertical direction (that is, the kneaded structure is secured). The integrated block portion of the surface panel material and the intruded concrete is stably held by the backfill material via the anchor material and the resistance increasing member.
The front panel unit itself may be the same as the conventional one in which the surface panel material is thin, and it is possible to ensure the advantages in transportation and the like.
Since backfilling material is used, advantages such as ensuring drainage and stable maintenance of the surface panel unit by the resistance increasing member embedded in the backfilling material can be fully utilized as it is. This is advantageous in terms of cost as compared with the case of replacing.
Since the partition plate is arranged before filling / filling the backfill material, the backfill material does not inadvertently enter the space filled with the concrete, and the position of the partition plate in the longitudinal direction of the anchor material By changing, it is possible to easily change the portion filled with the inflatable concrete (easy to adjust the weight of the block part composed of the surface panel material and the intruded concrete) and When charging, the partition plate can function as a rear mold.
Since the surface panel unit is used, the workability is sufficiently excellent.

According to the invention described in claim 2, by arranging the anchor material so as to be sandwiched from above and below by the pair of upper and lower divided partition plates, the partition plate can be easily disposed without being disturbed by the anchor material. can do.
According to the invention described in claim 3, the partition plate can be easily made by a simple method of pushing down the partition plate from above the anchor material so that the anchor material is inserted into the notch formed in the partition plate. Can be arranged.
According to the fourth aspect of the present invention, the partition plate can be maintained in the positioning state by using the anchor material effectively.

According to the fifth aspect of the present invention, it is possible to stably stack the surface panel units in the vertical direction by using the conserving pillar portion. In addition, the pressure acting on the partition plate from the backfilling material can be effectively received by the retaining column portion. Furthermore, the conserved column portion can be effectively used as a side formwork when filling and filling concrete.
According to the invention described in claim 6, the pressure acting on the partition plate from the backfilling material can be received by the retaining column portion without performing special processing on the retaining column portion.
According to the seventh aspect of the present invention, by fitting the left and right end portions of the partition plate into the groove portions formed in the conserving column portion, the partition plate is accurately positioned, and the pressure from the backfilling material is applied. It can be firmly received by the reserved column.

According to the invention described in claim 8, the partition plate can be configured to be light and inexpensive.
According to the ninth aspect of the present invention, the restricting member reliably prevents the partition plate receiving the pressure from the backfilling material from being inadvertently displaced toward the surface panel material. This is preferable for ensuring the space volume filled with concrete. In addition, the regulating member can be formed inexpensively and easily, and the pair of extending leg portions extend in opposite directions, so that a stable posture state can be maintained at the time of installation. Furthermore, after the filled concrete is filled, the regulating member also functions as a reinforcing material for reinforcing the hollow concrete, which is preferable for ensuring the strength of the hollow concrete over a long period of time. It will be a thing.
According to the invention described in claim 10, a cut that is configured on the side of the road that requires a large weight per unit volume of the block portion and that is required to be firmly integrated in the vertical direction. This is extremely preferable as a retaining wall.

According to the invention described in claim 11, a civil engineering structure having the effect corresponding to claim 1 is provided.
According to the twelfth aspect of the present invention, a civil engineering structure having the effect corresponding to the fourth aspect is provided.
According to the invention described in claim 13, a civil engineering structure having the effect corresponding to claim 6 is provided.
According to the invention described in claim 14, a civil engineering structure having the effect corresponding to claim 9 is provided.

  In FIG. 1, the cut surface 1 a is separated from the side groove 3 of the road 2 by a predetermined distance in a ground cut portion. A flat foundation 10 made of concrete is formed on the side of the cut surface 1a side of the side groove 3, and a plurality (11 in the embodiment) of surface panel units HU are stacked on the foundation 10. A civil engineering structure D for constructing a retaining wall is constructed.

  As shown in FIG. 2, the front panel unit HU includes a front panel member 20 that is elongated in the lateral direction, and an anchor member 21 that extends from the back side of the front panel member 20 toward the rear (the cut surface 1 a side). And a resistance increasing member 22 attached to the distal end portion of the anchor member 21. A plurality of anchor members 21 (five in the embodiment) are provided with a distance in the longitudinal direction with respect to one front panel member 20, and the resistance increasing member 22 corresponds to the number of the anchor members 21. Exists.

  The surface panel member 20 has a plurality of (in the embodiment, five) thin plate-like (in the embodiment, a thickness of about 10 cm) block portions 20b connected to each other, and the surface 2a (surface on the road 2 side). ) Is constructed as a pseudo-stone pattern imitating natural stone. Each block part 20b is mutually connected by the connecting wire 20c long in the horizontal direction embed | buried under it, as shown in FIG. Further, the front panel member 20 is integrally formed with a block-shaped retaining column 20d on the rear surface side (the rear surface side of a part of the block portions 20b). A plurality (two in the embodiment) are formed at intervals in the longitudinal direction. The height of the reserved column portion 20d is the same as the height of the block portion 2b, and when the surface panel members 20 are stacked in the vertical direction, the reserved column portion 20d positioned above is positioned above the reserved column portion 20d positioned below. The column portion 20d is placed stably. A connecting hole 20e is formed on each of the upper and lower surfaces of the column 20d (the connecting hole 20e formed on the lower surface is not shown), and a connecting pin (not shown) inserted into the connecting hole 20e. Thus, the horizontal displacement of the conserving column portions 20d stacked in the vertical direction is restricted. The surface panel material 20 having the constraining pillar part 20d as described above is formed by filling concrete in the mold with the connecting wire 20c disposed in the mold (reserving pillar part). 20d is also formed at the same time). In addition, the surface panel material 20 can be bent by bending the connecting wire 20c between the respective block portions 20b, and can be used on a curved construction surface.

  The anchor material 21 is connected and integrated with the front panel member 20 in a state where a front end portion thereof (an end portion on the road 2 side) is inserted into a mounting hole formed on the rear surface side of the front panel member 20. Is done. In this integration, an adhesive is filled in the mounting hole of the surface panel member 20, or the male screw portion formed in the anchor member 21 is screwed into the female screw portion formed in the mounting hole. Can be done. The anchor material 21 is excellent in tensile strength, and can be formed of, for example, an appropriate material such as iron or synthetic resin. In the embodiment, the surface of the wire made of iron-based metal is subjected to zinc / aluminum alloy plating treatment. It is formed by. The connection position of the anchor material 21 with respect to the surface panel material 20 is set to an intermediate position in the height direction of the surface panel material 20.

  The resistance increasing member 22 has a large surface area and is rectangular in the embodiment, but can be set to an appropriate shape. The resistance increasing member 21 is fixed to and integrated with the distal end portion of the anchor material 21 by, for example, screw connection. For example, the resistance increasing member 21 is connected to the male thread portion formed at the distal end portion of the anchor material 21 with the resistance increasing member 22 ( The resistance increasing member 22 can be integrated with the anchor member 21 by sandwiching the resistance increasing member 22 with a pair of front and rear nut members screwed into the male screw portion in a state in which the formed mounting holes) are fitted. . Of course, the coupling method of the resistance increasing member 22 to the anchor material 21 is not limited to this, and an appropriate coupling method can be adopted. Such a resistance increasing member 22 can be formed of an appropriate material such as an iron plate or a synthetic resin (for example, ABS resin).

  The surface panel unit HU as described above is transported to the construction site in a state where the surface panel material 20, the anchor material 21 and the resistance increasing member 22 are separated from each other, and is connected at the construction site as shown in FIG. Will be assembled).

  Next, the partition plate 30 used in the present invention will be described. The partition plate 30 shown in FIG. 2 has a two-part split configuration with split partition plates 30A and 30B. Each of the divided partition plates 30 </ b> A and 30 </ b> B is approximately half the height of the surface panel member 20. That is, with respect to the anchor material 21, the lower divided partition plate 30 </ b> A is installed from below, the upper divided partition plate 30 </ b> B is installed from above, and in a predetermined installation state of the partition plate 30, The anchor material 21 penetrates between 30B. Moreover, the division | segmentation partition plates 30A and 30B are equal to each other in the horizontal direction, and as shown in FIG. It is taken. Such divided partition plates 30A and 30B can be formed of a plate material made of synthetic resin (for example, ABS resin) having a large number of small holes 30a as shown in FIG. As shown in FIG. 9, it can also be set to a shape having a flange portion 30a at each of its upper and lower ends (substantially U-shaped in cross section) (the direction of the flange portion 30a is set in the direction opposite to that shown in the figure). May be good). In addition, the notch part which the anchor material 21 is penetrated is formed in both or one side of the partition plates 30A and 30B, and the partition plates 30A and 30B are viewed from above and below in portions other than the notch portion (anchor material 21). It can also set so that it may contact | abut (preventing the clearance gap between both the partition plates 30A and 30B).

  Next, a construction method for constructing a civil engineering structure D as shown in FIG. 1 using the surface panel unit HU and the partition plate 30 (divided partition plates 30A and 30B) described above will be described. First, as shown in FIG. 4, the surface panel material 20 of the surface panel unit HU is placed on the base portion 10. At this time, the stand column 20d is also placed on the foundation 10 and the surface panel unit HU is stably placed on the foundation 10. At this time, the anchor material 21 is brought into a posture state in which the tip portion is extended toward the cut surface 1a (the resistance increasing member 22 is positioned in the vicinity of the cut surface 1a). The dividing partition plates 30A and 30B are installed as shown in FIGS. 3 and 9 so that the anchor material 21 is sandwiched from above and below. The lower divided partition plate 30A is placed on the base portion 10, and the left and right end portions of the divided partition plates 30A and 30B are in contact with the back surface of the retaining column portion 20d. . Each divided partition plate 30A, 30B is preferably connected to the anchor material 21 using, for example, a number line, and by this connection to the anchor material 21, the partition plates 30A, 30B are inadvertently arranged in the longitudinal direction of the anchor material 21. It is preferable to surely prevent a situation (in particular, a movement toward the resistance increasing member 22 side) or to prevent a situation in which it tilts unnecessarily (a situation where it falls extremely). It will be a thing.

  From the state of FIG. 4, the backfilling material 40 is filled on the back side of the partition plate 30 (divided partition plates 30A and 30B), that is, between the partition plate 30 and the cut surface 1a. As the backfilling material 40, an appropriate material can be used, but crushed stone near the construction site may be used, and recycled crushed stone (for example, RC-40) is preferably used from the viewpoint of the environment. The state where the backfill material 40 is filled is shown in FIG.

  From the state shown in FIG. 5, the surface panel unit HU to be the next level (second level) is placed on the first level surface panel unit HU on the base 10. The partition plate 30 (divided partition plates 30A and 30B) is also disposed on the second-stage surface panel unit HU in the same manner as in the first step, and then the backfill material 40 is provided on the back side of the partition plate 30. Charge. The anchor material 21 on the back side of the resistance increasing member 22 and the partition plate 30 is embedded in the backfill material 40. The filled backfilling material 40 is pressed.

  After the filling of the backfill material 40 to the second-stage front panel unit HU is completed, the space on the front side of the partition plate 30 in each of the first-stage and second-stage front panel units HU, that is, the front panel material 20 Fill the space between the partition plate 30 with the concrete (50). The filled concrete 50 is sufficiently spread downward. The filling / height of the upper concrete 50 is the intermediate height of the second surface panel material 20 so that the joint with the next filled concrete does not become the upper end position or the lower end position of the front panel material 20. Up to the position. While the filled concrete 50 is not solidified, a reinforcing bar 60 made of, for example, a deformed steel bar as a connecting member is inserted into the concrete 50 from above, and the lower end of the reinforcing bar 60 reaches the vicinity of the foundation 10. So as to be inserted deeply. The state after the insertion bar 60 is inserted is the state of FIG. In addition, the reinforcing bar 60 is in a state of projecting sufficiently long upward so that the upper end portion thereof is embedded in the concrete in the next upper stage.

  From the state of FIG. 6, for example, in a state where the surface panel units HU are stacked in two steps by the same method as described above (the arrangement of the partition plate 30 and the filling / filling of the back-filling material 40 are each step). Is carried out for every two stages, and the insertion bar 60 is inserted. The upper and lower insertion lines 60 overlap each other in the vertical direction. Such operations are repeated up to the final surface panel unit HU, but the final surface panel unit HU has a surface panel material so that all the exposed portions are covered with concrete for finishing the upper surface. The civil concrete 50 is placed with a thickness corresponding to the height of the upper half of 20 to construct the civil engineering structure D shown in FIG.

  FIG. 10 shows a second embodiment of the present invention. In the present embodiment, the height of the partition plate 31 (corresponding to the partition plate 30) is set to be the same as the height of the surface panel member 20. And in the position corresponding to the position of the anchor material 21, the notch 31a extended in the up-down direction and opened downward is formed. The width of the notch 31 a is slightly larger than the outer diameter of the anchor material 21. Further, the vertical length of the notch 31a is set to be slightly larger than half the height of the surface panel member 20. When the partition plate 31 is installed, as shown in FIG. 10, the partition plate 31 is pushed down from above the anchor material 21 with the opening portion of the notch 31a facing downward, and the anchor 31 is pushed into the notch 31a. The material 21 may be inserted. The state in which the anchor member 21 is inserted to the deepest position of the notch 31a is a state in which the lower end height position of the partition plate 31 and the lower end position of the surface panel member 20 coincide. In the present embodiment, there is an advantage that the installation work of the partition plate 31 becomes extremely easy.

  11 and 12 show a third embodiment of the present invention. In the present embodiment, first, there is a feature in positioning of the partition plate 31 (which can be similarly applied to the partition plate 30). That is, mounting groove portions 20f are formed on the left and right side surfaces of a pair of adjacent column portions 20d, and the left and right end portions of the partition plate 31 are fitted into the mounting groove portions 20f. As a result, the positioning of the partition plate 31 is performed with extremely high accuracy, and a firm support by the reserved column portion 20d is also performed. By changing the position where the mounting groove 20f is formed in the front-rear direction, the distance between the surface panel member 20 and the partition plate 31, that is, the block weight which is the total weight of the surface panel member 20 and the trunk concrete 50 is changed. Is possible. By forming a plurality of such mounting groove portions 20f at intervals in the front-rear direction, the partition plate 31 can be installed at a desired position according to the construction site.

  In the embodiment of FIG. 11, the backfill material 40 is indicated by diagonal lines, but a regulating member 70 as shown in FIG. 12 is further used. That is, the partition plate 30 (31) is easily bent toward the surface panel member 20 by receiving the pressure from the backfilling material 40, but the restriction member 70 tries to restrict the bending of the partition plate 30 (31). To do. The regulating member 70 is set in a shape as shown in FIG. 11, for example, by bending a single iron-based metal rod. That is, the restricting member 70 has a first vertical portion 70a and a second vertical portion 70b that extend in the vertical direction substantially parallel to each other, and the upper ends of the two vertical portions 70a and 70b extend in the front-rear direction. It is connected by a horizontal portion 70c. The distance between the pair of vertical portions 70 a and 70 b, that is, the length of the horizontal portion 70 c is set to be a predetermined separation distance between the partition plate 30 (31) and the surface panel member 20. The pair of vertical portions 70a and 70b and the horizontal portion 70c form a substantially U-shaped main body portion. From the lower ends of the vertical portions 70a and 70b, the extending leg portions 70d and 70e are respectively in the horizontal direction. Is growing. The extended leg portions 70d and 70e extend in opposite directions (the extended leg portions 70D and 70e so as to be orthogonal to a plane including the pair of vertical portions 70a and 70b and the horizontal portion 70c). Is growing).

  A preferred installation example of the restriction member 70 as described above will be described. First, the regulating member 70 is installed between the partition plate 30 (31) and the surface panel member 20 in a posture state as shown in FIG. More specifically, in a posture state in which the vertical portions 70a and 70b extend in the vertical direction, one vertical portion 70a is positioned so as to come into contact with or close to the surface side of the partition plate 30 (31). The other vertical portion 70b is placed so as to be in contact with or located in the closest position to the back surface of the front panel member 20, and at this time, the lateral portion 70c extending in the front-rear direction is connected to the partition plate 30 (31). It fulfills the function of regulating the approach with the front panel material 20. Further, the pair of extended leg portions 70d and 70e are placed on the solidified ingot concrete 60 below, but the pair of extended leg portions 70d and 70e extend in directions opposite to each other. This is preferable for stably placing the regulating member 70 on the lower intruded concrete 60. In such an installation state, one extended leg 70d is arranged along the surface of the partition plate 30 (31), and the other extended leg 70e is along the back surface of the front panel member 20. Arranged.

  The restriction member 70 as described above is installed before and after the backfill material 40 is filled. Thereby, in the state after filling and placing the backfilling material 40 before placing the intrusion concrete 50, the pressure applied to the front acting on the partition plate 30 (31) from the backfilling material 40 is The surface panel material 20, that is, the surface panel unit HU is received through the restricting member 70, and the situation where the partition plate 30 (31) is greatly bent toward the surface panel material 20 side is reliably prevented. After the trunk concrete 50 is placed, the regulating member 70 is buried in the trunk concrete 50 and fulfills the reinforcing function of the trunk concrete 50. Prior to the installation of the regulating member 70, the separation distance between the pair of extending leg portions 70d, 70 is set to be slightly larger than the predetermined separation distance between the partition plate 30 (31) and the front panel member 20. Thus, in the state where the regulating member 70 is installed between the partition plate 30 (31) and the surface panel member 20 as described above, the pair of vertical portions 70a and 70b are caused to be elastically restored. The extending leg portions 70d and 70e can be pressed against the partition plate 30 (31) and the front panel member 20, and the position holding function is enhanced to ensure that the regulating member 70 moves inadvertently. This is preferable for prevention.

  FIG. 13 shows a fourth embodiment of the present invention, in which the partition plate 30 (30A, 30B) is arranged as shown in FIG. 3, and the restriction member 70 shown in FIG. 12 is used. is there. Also in this FIG. 13, the backfilling material 40 is shown by oblique lines.

  Although the embodiment has been described above, the present invention is not limited to the embodiment, and can be appropriately changed within the scope described in the scope of claims. For example, the invention includes the following cases. . After the partition plates 30 and 31 are installed, the anchor material 21 may be connected to the surface panel material 20 (the anchor material 21 is attached to the surface panel material 20 so as to penetrate the partition plates 30 and 31). It is made to approach from the back side, and is connected with the surface panel material 20). However, it is advantageous to connect the anchor material 21 to the front panel material 20 in advance because the connecting work can be performed under a wide work space. The incision bar 60 may be installed before placing the trunk concrete 50. You may make it place the incremental concrete 50 for every stage, and when placing indentation concrete 50 in multiple stages, it is not limited to two stages, but every three stages, etc. It can be appropriately selected depending on the case. The installation positions of the partition plates 30 and 31 can be set further to the back side than the back side of the column 20d (when a particularly large block weight is required). In this case, the column is provided on the partition plate. It is preferable to form a protrusion extending forward so as to contact the back surface of 20d so that the pressure from the backfilling material 40 acts on the retaining column 20d.

  When drainage from the backfilling material 40 needs to escape to the surface 20a side of the front panel material 20, one end is opened in the backfilling material 40 and the other end is the surface 20a of the front panel material 20. What is necessary is just to install the drainage pipe opened to the side, and the installation time of this drainage pipe should just be before and behind the backfill material 40 and the trunk concrete 50 like the partition plates 30 and 31. The civil engineering structure D is not limited to the cut wall retaining wall, and can be a construction part at an appropriate place such as a river or sea revetment structure. Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

Side surface sectional drawing which shows an example of the civil engineering structure constructed | assembled by the method of this invention. The perspective view which shows a surface panel unit and a division | segmentation partition plate. The top view which shows the example of arrangement | positioning of the partition plate with respect to a surface panel unit. Side surface sectional drawing which shows the process of this invention method. FIG. 4 is a side cross-sectional view showing a subsequent process of FIG. 3. Side surface sectional drawing which shows the process after FIG. The principal part expanded sectional view of FIG. The principal part expanded sectional view in case a partition plate has many small holes. The principal part side surface sectional drawing which shows the arrangement | positioning relationship between a division | segmentation partition plate and an anchor material. The principal part perspective view which shows the modification of a partition plate, and the relationship between anchor materials. The top view which shows another example of arrangement | positioning of a partition plate, and the example of installation of a control member. The perspective view which shows the detail of a control member. The top view which shows another embodiment of this invention.

Explanation of symbols

1: Cut part 1a: Cut surface 2: Road 10: Foundation part 20: Surface panel material 20b: Block part 20c: Connecting wire 20d: Retaining pillar part 20e: Mounting groove part 20a: Surface 21: Anchor material 22: Increase in resistance Member 30: Partition plate 30A: Divided partition plate 30B: Divided partition plate 31: Partition plate 31a: Notch portion 40: Backfill material 50: Venting concrete 60: Incisor (connecting member)
70: restriction member 70a: first vertical portion 70b: second vertical portion 70c: horizontal portion 70d: first extending leg 70e: second extending leg

Claims (14)

A front surface panel unit having a horizontally long front panel material, an elongated anchor material extending from the back surface side of the front surface panel material, and a resistance increasing member attached to the tip of the anchor material is sequentially stacked from the bottom to the top. Then, in the construction method of the civil engineering structure that constructs the civil engineering structure that covers the surface of the construction surface,
A first step of installing the surface panel unit at a predetermined position spaced from the construction surface in a posture state in which the anchor material extends toward the construction surface;
After the first step, on the back side of the front panel material and on the front side of the resistance increasing member, a second step of arranging a partitioning material for partitioning the backfill material and the intruded concrete;
After the second step, a third step of filling and filling the backside material on the back side of the partition material, and burying the resistance increasing member and the anchor material on the back side of the partition plate by the backfill material; ,
Each time the third step is performed, or every time the third step in which the surface panel unit is stacked in a plurality of stages is performed a plurality of times, the concrete is filled between the surface panel material and the partition plate. And a fourth step of installing a connecting member for connecting the upper and lower trunk concretes in the trunk concrete;
With
By constructing a civil engineering structure of a predetermined height by repeating each of the above steps,
The construction method of the civil engineering structure characterized by this. In claim 1,
The anchor material extends rearward from an intermediate position in the vertical direction of the surface panel material,
As the partition plate, a pair of upper and lower divided partition plates having a height that is substantially half of the height in the vertical direction of the surface panel material is used, and the pair of upper and lower divided partition plates sandwich the anchor material from the vertical direction. Arranged,
The construction method of the civil engineering structure characterized by this. In claim 1,
The partition plate has the same height as the vertical height of the surface panel material, and a notch is formed in the partition plate so as to open downward and insert the anchor material from below. How to build civil engineering structures. In claim 1,
The construction method of the civil engineering structure characterized in that the partition plate is connected to the anchor material before the backfilling material is charged and is thus moved in the longitudinal direction of the anchor material. . In claim 1,
On the back side of the surface panel material, a plurality of constraining pillar portions having the same height as the height in the vertical direction of the surface panel material are formed integrally with a gap in the horizontal direction,
On the conservative pillar portion of the surface panel material located below, the conservative pillar portion of the surface panel material located above is placed,
The partition plate is disposed in a restricted state, but moves toward the surface side of the surface panel material by the conservative pillar portion,
The intruded concrete is filled in the space between the constraining pillars adjacent in the lateral direction.
The construction method of the civil engineering structure characterized by this. In claim 5,
The construction method for a civil engineering structure, characterized in that the partition plate is disposed in a state in which the partition plate is in contact with the back surfaces of at least two adjacent columns. In claim 5,
A mounting groove extending in the up and down direction is formed on each of the left and right side surfaces of the retaining column part,
The partition plate is positioned between the two adjacent column portions, and the left and right ends thereof are disposed in a state of being fitted into the mounting groove.
The construction method of the civil engineering structure characterized by this. In any one of Claims 1 thru | or 7,
The construction method for a civil engineering structure, wherein the partition plate is made of a synthetic resin perforated panel material having a large number of small holes that do not allow the backfill material to pass through. In any one of Claims 1 thru | or 8,
Before the backfill material is filled, a regulating member is disposed between the surface panel material and the partition plate to restrict the partition plate from moving toward the surface panel material side,
The restricting member extends by a wire in a vertical direction and is disposed along the surface of the partition plate, and a first vertical portion is disposed in the vertical direction along the back surface of the front panel member. 2 vertical portions, a connecting portion that extends horizontally and connects the upper ends of the first vertical portion and the second vertical portion, and extends horizontally from the lower end of the first vertical portion along the surface of the partition plate A shape having a first extending leg and a second extending leg extending in a direction opposite to the first extending leg along the back surface of the front panel member from the lower end of the second vertical part. Set to
The construction method of the civil engineering structure characterized by this. In any one of Claims 1 thru | or 9,
The construction method for a civil engineering structure, wherein the construction surface is a cut surface formed on a side surface of a road. A construction surface constituted by using a surface panel unit having a horizontally long surface panel material, an elongated anchor material extending from the back surface side of the surface panel material, and a resistance increasing member attached to a tip portion of the anchor material. In civil engineering structures covering the surface,
The plurality of front panel units are stacked in a vertical direction in a state where the anchor material extends toward the construction surface and the surface panel material is installed at a predetermined position separated from the construction surface. And
On the back side of the front panel material and on the front side of the resistance increasing member, a partition material for partitioning the backfill material and the intruded concrete is disposed,
A backfill material is filled on the back side of the partition material, and the anchor member on the back side of the resistance increasing member and the partition plate is embedded by the backfill material,
Between the surface panel material and the partition plate is filled with concrete, and upper and lower concretes are connected by a connecting member embedded in the concrete.
Civil engineering structure characterized by that. In claim 11,
The civil engineering structure, wherein the partition plate is connected to the anchor member so as to restrict movement of the anchor member in a longitudinal direction. In claim 11,
On the back side of the surface panel material, a plurality of constraining pillar portions having the same height as the height in the vertical direction of the surface panel material are formed integrally with a gap in the horizontal direction,
On the conservative pillar portion of the surface panel material located below, the conservative pillar portion of the surface panel material located above is placed,
The partition plate is arranged in a restricted state, but moves toward the surface side of the surface panel material by the conservative pillar portion,
The intruded concrete is filled in the space between the constraining pillars adjacent in the lateral direction,
Civil engineering structure characterized by that. In any one of Claims 11 thru | or 13,
Between the surface panel material and the partition plate, a regulating member that restricts the partition plate from moving toward the surface panel material side is disposed,
The restricting member extends by a wire in a vertical direction and is disposed along the surface of the partition plate, and a first vertical portion is disposed in the vertical direction along the back surface of the front panel member. 2 vertical portions, a connecting portion that extends horizontally and connects the upper ends of the first vertical portion and the second vertical portion, and extends horizontally from the lower end of the first vertical portion along the surface of the partition plate A shape having a first extending leg and a second extending leg extending in a direction opposite to the first extending leg along the back surface of the front panel member from the lower end of the second vertical part. Set to
Civil engineering structure characterized by that.

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