JP2016020571A - Storage complex structure and storage tank and storage and infiltration tank using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a damage to a storage complex even when a relatively large partial pressure in a horizontal direction of a soil pressure is exerted on an outer peripheral surface of the storage complex, by receiving the partial pressure with a structurally solid outer peripheral wall.SOLUTION: A partition plate 12 of a storage complex 11 filled inside a storage tank 10 is formed as a square plate having at least one tubular rib protruded from a bottom surface and a top surface, and a tubular first spacer 21 is connected by fitting on the tubular rib of the partition plate. A plurality of horizontally connected bodies 41 to 44 are installed, the horizontally connected body being configured by lining up a plurality of the partition plates on the same horizontal plane and connecting between the partition plates. A first outer layer part 51 is formed at least on an outermost side of a storage tank, the first outer layer part being configured by alternately placing the partition plate and the first spacer in a vertical direction. Furthermore, an outer peripheral wall 15 is formed that surrounds an outer peripheral surface of the first outer layer part, by engaging each of a plurality of wall members 13 of a same shape to the partition plate and the first spacer that constitute the first outer layer part, and connecting the wall members to each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure of a storage complex that is filled inside a storage tank that stores rainwater or the like or a storage and penetration tank that temporarily stores rainwater or the like, and a storage tank and a storage and penetration tank that use the storage complex. .

  Conventionally, the inside of a storage tank or storage permeation tank is filled, and one cylindrical rib protrudes from the lower and upper surfaces of the partition plate, and a funnel-shaped end spacer is fitted to the cylindrical rib on the upper and lower surfaces of the partition plate. And a storage complex in which both ends of a cylindrical connecting spacer are fitted to the small diameter portions of the pair of end spacers. (For example, refer to Patent Document 1). In this storage complex, when the length of one side of the partition plate is S, the diameter of the portion where the cylindrical rib is fitted to the large diameter portion is set within the range of 0.40S to 0.95S. In addition, a plurality of horizontal connection bodies are provided by arranging a plurality of partition plates in the same horizontal plane and connecting each other, and an end spacer and a connection spacer are interposed between the plurality of horizontal connection bodies. Further, the foamed polystyrene plate is brought into contact with the outermost surface of the plurality of end spacers located on the outermost side among the plurality of end spacers of the storage complex filled in the storage tank or the storage permeation tank. Is configured to surround the end spacers and the connecting spacers between the plurality of horizontal connecting members.

  In the storage complex configured as described above, the partition plate, the end spacer and the connection spacer receive the partial pressure in the vertical direction among the external forces acting on the storage complex, and the horizontal force among the external forces acting on the storage complex. The horizontal connection mainly receives the partial pressure. As a result, even a storage complex formed by assembling relatively simple members can ensure strength as a relatively large structure. In addition, in the storage tank or storage permeation tank filled with the above storage complex, when the storage complex is wrapped with a water impervious sheet or a water permeable sheet together with the foamed polystyrene plate, the horizontal partial pressure of the external pressure acting on the storage complex Even if it acts in the direction in which it is pressed against the water-impervious sheet or water-permeable sheet, this external pressure is received by a plane having a large area of the expanded polystyrene plate. As a result, damage to the water shielding sheet or the water permeable sheet can be prevented.

International Publication WO2012 / 111465 (Claim 1, paragraphs [0020], [0027], [0066], FIG. 1, FIG. 6, FIG. 10)

  In the storage composite shown in the above-mentioned conventional Patent Document 1, since the expanded polystyrene plate receives the horizontal partial pressure of the earth pressure, the expanded polystyrene and storage composite may be damaged when the horizontal partial pressure is increased. there were. Moreover, in the storage complex shown in the above-mentioned conventional Patent Document 1, since the connecting spacer is formed in a cylindrical shape having the same diameter in the longitudinal direction, each member of the storage complex is directed to its installation location. There is a problem in that the volume occupied by the connecting spacer increases when transporting.

  The first object of the present invention is that even if a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the storage complex, the structurally relatively strong outer peripheral wall receives the above partial pressure. Therefore, it is providing the structure of a storage complex which can prevent damage to a storage complex. The second object of the present invention is to provide a storage complex structure that can relatively reduce the volume occupied by the connecting spacer when each member of the storage complex is conveyed toward its installation location, and a storage tank using the same. And providing a storage permeation tank. The third object of the present invention is that even if a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the storage complex, the structurally relatively strong outer peripheral wall receives the above partial pressure. Therefore, it is providing the storage tank and storage penetration tank using the structure of a storage complex which can prevent damage to a water-impervious sheet and a water-permeable sheet.

  The first aspect of the present invention is that, as shown in FIGS. 1 to 4, in the structure of the storage complex 11 filled in the storage tank 10 or the storage permeation tank, at least one cylindrical rib 12 a on the lower surface, A plurality of square plate-like partition plates 12 with 12b projecting and at least one cylindrical rib 12c, 12d projecting on the upper surface, and cylindrical ribs 12a on either or both of the lower and upper surfaces of the partition plate 12 And a plurality of horizontal connecting bodies 41 to 44 configured by connecting a plurality of partition plates 12 in the same horizontal plane and connecting each other. The first outer layer portion 51 is provided at least on the outermost side of the storage tank 10 or the storage permeation tank, and the first outer layer portion 51 is configured by alternately arranging the partition plates 12 and the first spacers 21 in the vertical direction, First outer layer part 5 A plurality of wall members 13 having the same shape are engaged with the partition plate 12 and the first spacer 21 constituting the outer peripheral wall 15 and the outer peripheral wall 15 surrounding the outer peripheral surface of the first outer layer portion 51 is formed by engaging with each other. It is characterized by that.

  2nd viewpoint of this invention is invention based on 1st viewpoint, Comprising: Furthermore, as shown in FIGS. 1-4, it is 2nd adjacent to the inner side from the 1st outer layer part of a storage tank or a storage penetration tank. An outer layer portion is provided, and the partition plate 12 inside the first outer layer portion 51 or inside the second outer layer portion 52 is arranged with one or more steps in the vertical direction, and the partition plate 12 is longer than the first spacer 21. It is characterized by being connected by a second spacer 22 formed and extending in the vertical direction.

  A third aspect of the present invention is an invention based on the first aspect, and further, as shown in FIGS. 2, 3, 6, and 9, a plate-like portion extending in the vertical direction on the inner surface of the wall member 13. 13b is provided, an outer groove portion 21c extending in the vertical direction is formed on the outer peripheral surface of the first spacer 21, and the plate-like portion 13b is configured to be engageable with the outer groove portion 21c.

  A fourth aspect of the present invention is an invention based on the first or second aspect, and further, as shown in FIGS. 2, 4 and 5, cylindrical ribs 12a and 12b are concentric on the lower surface of the partition plate 12. Two cylindrical ribs 12c and 12d are concentrically formed on the upper surface of the partition plate 12, and the first spacer 21 is fitted and connected to the small-diameter cylindrical ribs 12a and 12c. A funnel shape having a small-diameter portion 21a and a large-diameter portion 21b formed integrally with the small-diameter portion 21a and having a larger diameter than the small-diameter portion 21a and fitted and connected to the large-diameter cylindrical ribs 12b and 12d. It is characterized by being formed.

  A fifth aspect of the present invention is an invention based on the second aspect, and further, as shown in FIGS. 2, 3 and 5, the first outer layer portion 51 or the first outer layer portion 51 and the second outer layer portion. A main shaft pipe 14 extending in the vertical direction is provided through the partition plate 12 and the first spacer 21 of 52 so as to penetrate therethrough.

  As shown in FIG. 1, the sixth aspect of the present invention is that the storage complex 11 according to any one of the first to fifth aspects is filled inside, and the outer surface of the outer peripheral wall 15 of the storage complex 11 is The storage tank is formed in a planar shape and the storage complex 11 is covered with a water shielding sheet 23.

  According to a seventh aspect of the present invention, the storage complex according to any one of the first to fifth aspects is filled inside, the outer surface of the outer peripheral wall of the storage complex is formed in a planar shape, and the storage complex is It is a storage penetration tank covered with a water-permeable sheet.

  In the structure of the storage complex according to the first aspect of the present invention, by alternately arranging the partition plates and the first spacers in the vertical direction, the first outer layer portion located at least on the outermost side of the storage tank or the like is configured, Since a plurality of wall members having the same shape are engaged with the partition plate and the first spacer constituting the first outer layer portion, and the outer peripheral wall surrounding the outer peripheral surface of the first outer layer portion is formed by engaging with each other. The partition member and the first spacer receive the vertical partial pressure of the external force acting on the storage complex, and the wall member held by the first spacer is the horizontal partial pressure of the external force acting on the storage complex. receive. As a result, even a storage complex having a relatively simple shape and a relatively small number of types of members assembled can ensure a relatively large strength as a structure. In particular, even if a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the outer peripheral wall, the outer peripheral wall that is structurally firmly held by the first outer layer portion receives the partial pressure. Damage to the composite can be prevented. In addition, since the outer peripheral wall is formed by combining a plurality of wall members having the same shape, that is, a single shape wall member, a storage complex using the wall member, a partition plate and a first spacer having a relatively simple shape. By forming, it is possible to reduce the man-hours for manufacturing the mold for molding these members.

  In the structure of the storage complex according to the second aspect of the present invention, the partition plates on the inner side from the first outer layer part or the inner side from the second outer layer part are arranged with one or more steps in the vertical direction, and these partition plates Are connected by a second spacer that is longer than the first spacer, so that the number of parts and the number of assembling steps can be reduced by adopting a structure that can withstand a relatively low strength in a portion where the external pressure inside the storage complex hardly acts.

  In the structure of the storage complex according to the third aspect of the present invention, a plate-like portion extending in the vertical direction is projected from the inner surface of the wall member, an outer groove portion extending in the vertical direction is formed on the outer peripheral surface of the first spacer, and the wall Since the plate-like portion protruding from the member is configured to be engageable with the outer groove portion formed on the outer peripheral surface of the first spacer, the wall member is securely held by the first spacer. As a result, as described above, even if a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the outer peripheral wall, the outer peripheral wall that is structurally firmly held by the first outer layer portion is the above-mentioned component. Since the pressure is applied, damage to the storage complex can be prevented.

  In the structure of the storage complex according to the fourth aspect of the present invention, two cylindrical ribs are concentrically formed on the lower surface of the partition plate, and two cylindrical ribs are concentrically formed on the upper surface of the partition plate. Since one spacer is formed in a funnel shape having a small-diameter portion that is fitted and connected to a small-diameter cylindrical rib and a large-diameter portion that is fitted and connected to a large-diameter cylindrical rib, When each member is transported toward the installation location, a small diameter portion of another first spacer is inserted into the large diameter portion of the first spacer, and another first first spacer is inserted into the large diameter portion of the other first spacer. By inserting the small-diameter portion of the spacer and repeating this operation to connect the plurality of first spacers, the volume occupied by the first spacer can be relatively reduced. As a result, the conveyance efficiency of the members constituting the storage composite material can be improved.

  In the structure of the storage complex according to the fifth aspect of the present invention, the first outer layer portion or the partition plate of the first outer layer portion and the second outer layer portion and the first spacer are provided through the main shaft pipe extending in the vertical direction. The partition plate, the first spacer and the main shaft pipe receive the partial pressure in the vertical direction of the external force acting on the storage complex, and the horizontal partial pressure of the external force acting on the storage complex is held by the first spacer. Wall member receives. In particular, even when a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the outer peripheral wall, the outer peripheral wall that is structurally more firmly held by the first outer layer portion reinforced by the main shaft pipe is Since the partial pressure is received, damage to the storage complex can be prevented more reliably.

  In the storage tank of the sixth aspect of the present invention, the storage complex is filled inside, the outer surface of the outer peripheral wall of the storage complex is formed in a planar shape, and the storage complex is further covered with a water shielding sheet. The horizontal partial pressure of the external pressure acting on the storage complex acts in a direction in which the water shielding sheet is pressed against the outer surface of the outer peripheral wall of the storage complex, but the outer surface of the outer peripheral wall is formed in a substantially flat shape. Therefore, damage to the water shielding sheet can be prevented.

  In the storage and infiltration tank of the seventh aspect of the present invention, the storage complex is filled inside, the outer surface of the outer peripheral wall of the storage complex is formed in a flat shape, and the storage complex is further covered with a water-permeable sheet. The horizontal partial pressure of the external pressure acting on the storage complex acts in the direction in which the permeable sheet is pressed against the outer surface of the outer peripheral wall of the storage complex, but the outer surface of the outer peripheral wall is formed in a substantially flat shape. The damage of the water-permeable sheet can be prevented.

It is a longitudinal cross-sectional view which shows the state which filled the storage complex inside the storage tank of 1st Embodiment of this invention. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is the C section expansion perspective view of FIG. The main part which shows the state (a) immediately before connecting a 1st spacer on a partition plate in a 1st outer layer part and a 2nd outer layer part, and inserting a main shaft pipe in the center hole of this partition plate, and a state (b) just after It is a perspective view. It is the perspective view which looked at the state which attached the two wall members of the same shape to the partition plate located in the corner part of a 1st outer layer part at right angle from the inner side. It is the perspective view which looked at the state which attached the two wall members of the same shape at right angle to the partition plate located in the corner part of a 1st outer layer part from the outer side. It is the perspective view which looked at the state just before 2 adjacent wall members engage with each other from the inner side. It is a perspective view of a 1st spacer. It is a perspective view which shows the state (a) immediately before connecting the four partition plates adjacent within the same horizontal surface with a 1st coupling piece, and the state (b) just after. It is a principal part perspective view which shows the state just before connecting a 2nd spacer via a connection adapter on the four partition plates connected with the 1st coupling piece. It is a bottom view of the 1st coupling piece which mutually connects each corner part of four partition plates adjacent within the same horizontal plane. It is a bottom view of the 2nd coupling piece which connects each outside corner part in two partition plates which are located on the outermost side in the same horizontal plane mutually. It is the bottom view and top view of the upper surface board and bottom view which were formed identically. It is a longitudinal cross-sectional view corresponding to FIG. 1 which shows the state which filled the storage complex inside the storage tank of 2nd Embodiment of this invention.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings.

<First Embodiment>
As shown in FIG. 1, the storage complex 11 is filled into the storage tank 10. As shown in FIG. 2, the storage complex 11 has a plurality of partition plates with at least one cylindrical rib 12a, 12b projecting from the lower surface and at least one cylindrical rib 12c, 12d projecting from the upper surface. 12 and a cylindrical first spacer 21 fitted and connected to cylindrical ribs 12a to 12d on either or both of the lower surface and the upper surface of the partition plate 12. In this embodiment, two cylindrical ribs 12a and 12b are formed concentrically on the lower surface of the partition plate 12, and two cylindrical ribs 12c and 12d are formed concentrically on the upper surface of the partition plate 12 (FIG. 2, FIG. 3, FIG. 5, FIG. 6, FIG. 10 and FIG. Specifically, a small-diameter first cylindrical rib 12a and a large-diameter second cylindrical rib 12b are formed on the lower surface of the partition plate 12, and a small-diameter third cylindrical rib 12c and a large-diameter fourth cylinder are formed on the upper surface of the partition plate 12. A cylindrical rib 12d is formed. The diameter of the first cylindrical rib 12a is the same as the diameter of the third cylindrical rib 12c. The diameter of the second cylindrical rib 12b and the diameter of the fourth cylindrical rib 12d are formed to be the same and larger than the diameters of the first and third cylindrical ribs 12a and 12c. Further, an insertion hole 12e through which a later-described main shaft pipe 14 can be inserted is formed in the center of the partition plate 12 (FIGS. 2, 3, and 6 to 8). 3, 5, 6, 10, and 11 are a plurality of flow holes formed in the partition plate 12 through which rainwater 25 (FIG. 1) can pass, and FIGS. 3, 5, 6. 10 and 11, reference numeral 12 g denotes a first engagement protrusion 31 b of the first coupling piece 31, which will be described later, or a second engagement protrusion of the second coupling piece 32, which is formed on each of the four corner portions of the partition plate 12. Reference numeral 32b denotes an engaged hole that can be engaged. The partition plate 12 is formed of a polyolefin resin (polypropylene, polyethylene, etc.), a vinyl chloride resin, or the like.

  In this embodiment, the first spacer 21 is formed integrally with the small diameter portion 21a and the small diameter portion 21a fitted to and connected to the small diameter first cylindrical rib 12a or the third cylindrical rib 12c. It is formed in a funnel shape having a larger diameter than the portion 21a and having a large diameter portion 21b that is fitted and connected to the second cylindrical rib 12b or the fourth cylindrical rib 12d having a larger diameter (FIGS. 2 and 4). 5 and 9). Further, on the outer peripheral surface of the first spacer 21, four outer groove portions 21c extending in the longitudinal direction of the first spacer 21 are formed every 90 degrees with the center line of the first spacer 21 as an axis. A pair of slotted long holes 21d and 21d are formed on the bottom surfaces of these outer groove portions 21c at predetermined intervals in the longitudinal direction of the outer groove portion 21c and extending in the longitudinal direction of the outer groove portion 21c. Reference numerals 21e in FIGS. 2, 4 and 9 are flow holes formed in the first spacer 21 through which rainwater 25 (FIG. 1) can pass. The first spacer 21 is made of polyolefin resin (polypropylene, polyethylene, etc.), vinyl chloride resin, or the like.

  On the other hand, the outer peripheral surface of the partition plate 12, that is, the upper portion of the four outer surfaces is formed with the first concave portion 12h and the first convex portion 12i side by side, and the lower portion of the four outer surfaces has the second convex portion 12j and Second recesses 12k are formed side by side (FIGS. 4 to 7, FIG. 10 and FIG. 11). The second convex portion 12j is positioned below the first concave portion 12h, and the second concave portion 12k is configured to be positioned below the first convex portion 12i. And the horizontal connection bodies 41-44 are comprised by arranging the several partition plate 12 in the same horizontal surface, and mutually connecting. At this time, the first convex portion 12i and the first concave portion 12h of the adjacent partition plate 12 are loosely inserted and loosely fitted into the first concave portion 12h and the first convex portion 12i of the partition plate 12, respectively. The second concave portion 12k and the second convex portion 12j of the adjacent partition plate 12 are loosely fitted and loosely inserted into the portion 12j and the second concave portion 12k, respectively. Thereby, it is possible to prevent the partition plate 12 and the adjacent partition plate 12 from moving in the contact surface, that is, the partition plate 12 and the adjacent partition plate 12 move relatively in the vertical direction and the horizontal direction. Can be prevented.

  The some partition plate 12 located in the same horizontal surface is couple | bonded by the 1st coupling piece 31 or the 2nd coupling piece 32 (FIG. 3, FIG.4 and FIGS. 10-13). That is, the respective corner portions of the four partition plates 12 adjacent in the same horizontal plane are coupled to each other by the first coupling piece 31, and each corner of the two adjacent partition plates 12 positioned on the outermost side in the same horizontal plane. The parts are coupled to each other by the second coupling piece 32. The first coupling piece 31 includes a first coupling body 31a formed in a square plate shape, and first engagement protrusions 31b that project from four corner portions on one surface of the first coupling body 31a. (FIGS. 3 and 10 to 12). By inserting and inserting the first engaging protrusion 31b into the engaged hole 12g of the partition plate 12, the first engaging protrusion 31b engages with the engaged hole 12g of the partition plate 12 and does not come off. On the other hand, the second coupling piece 32 includes a rectangular plate-shaped second coupling main body 32a and second engaging projections 32b respectively protruding from two corner portions on one surface of the second coupling main body 32a ( 3, FIG. 4 and FIG. The second engaging protrusion 32b is formed in the same shape as the first engaging protrusion 31b, and the second engaging protrusion 32b is driven by being inserted into the engaged hole 12g of the partition plate 12, thereby inserting the second engaging protrusion 32b. 32b is engaged with the engaged hole 12g of the partition plate 12 and cannot be removed. The first and second coupling pieces 31 and 32 are formed of a polyolefin resin (polypropylene, polyethylene, or the like), a vinyl chloride resin, or the like.

  In this embodiment, the horizontal coupling bodies 41 to 44 are provided in four stages. The first horizontal coupling body 41 at the bottom, the second horizontal coupling body 42 at the second stage from the bottom, and the third stage from the bottom. The third horizontal connection body 43 and the fourth (topmost) horizontal connection body 44 from the bottom (FIGS. 1, 2 and 4). The first, third, and fourth horizontal coupling bodies 41, 43, 44 are formed in a square plate shape, and the second horizontal coupling body 42 is formed in a square frame shape. Moreover, in this embodiment, a 1st outer layer part is provided in the outermost side of the storage tank 10, and a 2nd outer layer part is provided adjacent to this inner side from this 1st outer layer part. The first outer layer portion 51 and the second outer layer portion 52 are configured by alternately arranging the partition plates 12 and the first spacers 21 in the vertical direction. That is, the first outer layer portion 51 and the second outer layer portion 52 are provided between the partition plate 12 constituting the lowermost first horizontal connection body 41 and the partition plate 12 constituting the uppermost fourth horizontal connection body 44. In addition to the partition plates 12 and the first spacers 21 stacked in the vertical direction, the partition plate 12 constituting the first horizontal coupling body 41 and the partition plate 12 constituting the uppermost fourth horizontal coupling body 44 are included. And the partition plate 12 inside the 2nd outer layer part 52 is arrange | positioned 1 step apart in the perpendicular direction. As a result, the second horizontal coupling body 42 has a rectangular frame shape made up of only the partition plates 12 constituting the first and second outer layer portions 51 and 52 without the partition plate 12 being disposed inside the second outer layer portion 52. Formed.

  The partition plate 12 and the first spacer 21 constituting the first outer layer portion 51 are configured such that a plurality of wall members 13 having the same shape engage with each other and engage with each other (FIGS. 2, 4, and 5). 6 to 8). The wall member 13 is formed in a rectangular shape whose width is substantially the same as the length of one side of the partition plate 12 and whose height is substantially the same as the height of the first spacer 21. Further, the outer surface of the wall member 13 is formed to be flat, and ribs 13a are projected from the inner surface of the wall member 13 along the peripheral edge thereof. In addition, a plate-like portion 13b extending in the vertical direction and having a tip surface inclined at the same angle as the inclination angle of the outer peripheral surface of the first spacer 21 protrudes from the center of the inner surface of the wall member 13, and the plate-like portion 13b A pair of locking pieces 13c, 13c extending in a direction further away from the wall member 13 and having a substantially arrow-like cross section project from the upper and lower ends. And the front-end | tip part of the plate-shaped part 13b is inserted in the outer-groove part 21c of the 1st spacer 21, and a pair of latching pieces 13c and 13c can each be latched in a pair of slot long holes 21d and 21d of the 1st spacer 21, respectively. Composed. Further, an upper rib 12d that curves so that the front end surface is along the outer peripheral surface of the second cylindrical rib 12b or the fourth cylindrical rib 12d of the partition plate 12 protrudes from the upper edge of the inner surface of the wall member 13. On the lower edge, a lower rib 13e that protrudes so that its front end surface follows the outer peripheral surface of the second cylindrical rib 12b or the fourth cylindrical rib 12d of the partition plate 12 is provided. 3, 4, and 6 to 8, reference numeral 13 f is a through hole formed in the wall member 13 and through which rainwater 25 (FIG. 1) can pass.

  On one side surface of the wall member 13, two first wall projections 13 g are protruded with a predetermined interval in the vertical direction, whereby one side surface of the wall member 13 has a predetermined vertical direction. Three first wall recesses 13h are projected at intervals (FIGS. 6 to 8). Further, on the other side surface of the wall member 13, three second wall projections 13 i are provided with a predetermined interval in the vertical direction so that the other side surface of the wall member 13 has a predetermined value in the vertical direction. Two second wall recesses 13j are projected with an interval of. On the tip surfaces of the two first wall projections 13g, a step is formed so that the outside protrudes from the inside. On the flange surfaces of the three first wall recesses 13h, a step is formed so that the inside protrudes from the outside. The Further, a step is formed on the tip surface of the three second wall projections 13i so that the outside protrudes from the inside, and a step in which the inside protrudes from the outside is formed on the flange surface of the two second wall recesses 13j. Is done. Then, by arranging the plurality of wall members 13 so as to surround the outer peripheral surface of the first outer layer portion 51 and connecting them together, the outer peripheral wall 15 surrounding the outer peripheral surface of the first outer layer portion 51 is formed. At this time, the second wall convex portion 13i and the second wall concave portion 13j of the adjacent wall member 13 are loosely inserted and loosely fitted into the first wall concave portion 13h and the first wall convex portion 13g of the wall member 13, respectively. The first wall concave portion 13h and the first wall convex portion 13g of the adjacent wall member 13 are loosely fitted and loosely inserted into the second wall convex portion 13i and the second wall concave portion 13j of the wall member 13, respectively. Thereby, it is possible to prevent the wall member 13 and the adjacent wall member 13 from moving in the contact surfaces thereof, that is, the wall member 13 and the adjacent wall member 13 are relatively moved in the vertical direction and the thickness direction. It can be prevented from moving. Further, both ends of the upper rib 13d and the lower rib 13e of the wall member 13 are formed in a state where they are notched at an angle of 45 degrees. As a result, the second wall convex portion 13i and the second wall concave portion 13j of the adjacent wall member 13 are loosely inserted and loosely fitted into the first wall concave portion 13h and the first wall convex portion 13g of the wall member 13, respectively. Sometimes these wall members are kept at a right angle.

  On the other hand, the spindle pipe 14 extending in the vertical direction is provided through the partition plate 12 and the first spacer 21 constituting the first outer layer portion 51 and the second outer layer portion 52 (FIGS. 2, 3, and 5). The main shaft pipe 14 is made of plastic such as polyvinyl chloride (PVC) or polypropylene (PP). The outer diameter of the main shaft pipe 14 is formed slightly smaller than the diameter of the insertion hole 12e of the partition plate 12 (FIGS. 2, 3, and 5). Thereby, the main shaft pipe 14 can be smoothly inserted into the insertion hole 14e. A plurality of elongated holes 14a extending in the longitudinal direction of the main shaft pipe 14 are formed at predetermined intervals on the outer peripheral surface of the main shaft pipe 14 (FIGS. 2 and 5). These long holes 14 a are formed in order to prevent the occurrence of air accumulation in the main shaft pipe 14 by introducing rainwater or the like stored in the storage tank 10 into the main shaft pipe 14. Further, the length of the spindle pipe 14 is provided so as to extend from the bottom surface to the top surface of the storage tank 10 (FIG. 1). When the depth of the storage tank 10 is deeper than the length of the main shaft pipe 14, they are connected by a pipe joint (not shown). In addition, when the storage tank 10 is relatively small and only a relatively small strength is required, the spindle pipe 10 may be omitted.

  The partition plate 12 which is located inside the second outer layer portion 52 and constitutes the lowermost first horizontal connection body 41 and the third horizontal connection body 43 from the bottom among the four stages of horizontal connection bodies 41 to 44. Are connected by a second spacer 22 and a connection adapter 16 which are longer than the first spacer 21 and extend in the vertical direction (FIGS. 1 to 4 and 11). The second spacer 22 is formed by cutting a commercially available plastic pipe, such as a VU pipe (a hard vinyl chloride pipe for sewers not subjected to internal pressure), to a predetermined length. The connection adapter 16 includes a binding member 17 that binds the four partition plates 12 together on the same plane, and a funnel-shaped funnel member 18 that connects the binding member 17 and the second spacer 22 (see FIG. 1-4 and FIG. 11). The bundling member 17 includes a square plate-shaped bundling body 17a and four cylindrical ribs that protrude from the four corners on the lower surface of the bundling body 17a and can be fitted into the second cylindrical rib 12b or the fourth cylindrical rib 12d. The first bundling rib 17b and the single cylindrical second bundling rib 17c formed at the center of the upper surface of the bundling body 17a and having a larger diameter than the first bundling rib 17b. The funnel member 18 has a large-diameter rib 18a that can be fitted to the second bundling rib 17c of the bundling member 17, and is formed integrally with the large-diameter rib 18a and has a smaller diameter than the large-diameter rib. And a cylindrical small-diameter rib 18b that can be fitted. The bundling member 17 and the funnel member 18 are each formed of polyolefin resin (polypropylene, polyethylene, etc.), vinyl chloride resin, or the like. Further, reference numeral 22a in FIGS. 2 and 4 is a through hole formed in the second spacer 22 and through which rainwater 25 (FIG. 1) can flow. Reference numeral 17d in FIGS. A plurality of flow holes formed in the bundling body 17a of the bundling member 17 and through which the rainwater 25 (FIG. 1) can flow. In this embodiment, the connection adapter is constituted by two members, that is, a bundling member and a funnel member. However, the connection adapter may be constituted by a single member obtained by integrally molding the bundling member and the funnel member.

  A square bottom plate 19 is spread on the lower surface of the lowermost first horizontal coupling body 41, and a square top plate 20 is covered on the upper surface of the uppermost fourth horizontal coupling body 44 (FIGS. 2 and 4). ). The bottom surface of the bottom plate 19 is formed flat, and an engagement rib 19a that can be engaged with the cylindrical ribs 12b and 12d of the partition plate 12 protrudes from the top surface of the bottom plate 19. Further, the top surface of the top plate 20 is formed flat, and engaging ribs 20a that can be engaged with the cylindrical ribs 12b and 12d of the partition plate 12 project from the bottom surface of the top plate 20. These bottom plate 19 and top plate 20 are formed in the same shape. In addition, one bottom plate and one top plate are formed in substantially the same size as the four partition plates 12 joined in a square shape. Further, even if a water shielding sheet 23 described later contacts the lower surface of the bottom plate 19, the bottom surface of the bottom plate 19 is flat, so that the water shielding sheet 23 is not damaged and the water shielding sheet 23 contacts the upper surface of the top plate 20. Even so, since the top surface of the top plate 20 is flat, the water shielding sheet 23 is not damaged. Reference numerals 19b and 20b in FIG. 14 are flow holes formed in the bottom plate and the top plate through which rainwater 15 (FIG. 1) can flow.

  The said storage complex 11 is coat | covered with the water-impervious sheet | seat 23, and the storage tank 10 is comprised by this (FIG. 1). The tip of the rainwater introduction pipe 24 is inserted into the storage tank 10. The base end of the rainwater introduction pipe 24 is connected to a dust removal management rod 26 buried in the ground at a higher position than the storage tank 10, and the dust removal management rod 26 has a substantially U-shaped cross section through the rainwater inflow pipe 27. It is connected to the side groove 28 (FIG. 1). The dust removal management rod 26 has a first rod 61 whose upper side surface is connected to the side groove 28 via the rainwater inflow pipe 27, and a second rod 62 provided adjacent to the first rod 61. An insole wall 61a is provided at the center of the first rod 61 in the vertical direction. In addition, an upright pipe 61b is erected at the center of the bottom of the first rod 61 so as to penetrate the middle bottom wall 61a, and the upper end of the upright pipe 61b is inclined in the same direction as the upper surface of the middle bottom wall 61a. Is done. Further, the base end of the rainwater introduction pipe 24 is connected to the lower side surface of the upright pipe 61b. On the other hand, the side surfaces of the first rod 61 and the second rod 62 that are in contact with each other have relatively small outflow holes 61c and inflow holes 62a that guide a small amount of rainwater 25 that flows down on the middle bottom wall 61a into the second rod 62 when there is a light rain. Are formed respectively. Reference numeral 29 in FIG. 1 is gravel and sand that allow the rainwater 25 that has flowed into the second ridge 62 to penetrate into the ground, and reference numeral 62b in FIG. 1 is an overflow formed on the upper side surface of the second ridge 62. It is a hole.

  The operation of the structure of the storage complex 11 configured as described above will be described. By alternately arranging the partition plates 12 and the first spacers 21 in the vertical direction, the first and second outer layer portions 51 and 52 of the storage tank 10 are constituted, and the partition plates 12 and the first constituting the first outer layer portion 51 are arranged. Since the plurality of wall members 13 having the same shape are engaged with each spacer 21 and engaged with each other, the outer peripheral wall 15 surrounding the outer peripheral surface of the first outer layer portion 51 is formed, and thus acts on the storage complex 11. The partition plate 12 and the first spacer 21 receive the partial pressure in the vertical direction of the external force, and the wall member 13 held by the first spacer 21 receives the partial pressure in the horizontal direction of the external force acting on the storage complex 11. Specifically, the plate-like portion 13 b of the wall member 13 is inserted into the outer groove portion 21 c of the first spacer 21, and the pair of locking pieces 13 c and 13 c of the wall member 13 are inserted into the pair of slotted slots in the first spacer 21. Locks to 21d and 21d, respectively. At this time, the upper rib 13 d of the wall member 13 contacts the outer peripheral surface of the second cylindrical rib 12 b of the partition plate 12 installed at the upper end of the first spacer 21, and the lower rib 13 e of the wall member 13 is installed at the lower end of the first spacer 21. The partition plate 12 contacts the outer peripheral surface of the fourth cylindrical rib 12d. Thereby, the wall member 13 is reliably held and fixed by the first spacer 21 and the partition plate 12. As a result, even the storage complex 11 having a relatively simple shape and formed by assembling relatively few types of members can ensure a relatively large strength as a structure. In particular, even when a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the outer peripheral wall 15, the outer peripheral wall 15 structurally firmly held by the first outer layer portion 51 receives the partial pressure. Therefore, damage to the storage complex 11 can be prevented. Moreover, although the said partial pressure acts in the direction which press-contacts the water-impervious sheet 23 to the outer peripheral wall 15, since the outer surface of the outer peripheral wall 15 is formed in substantially planar shape, damage to the water-impervious sheet 23 can be prevented.

  Further, since the main shaft pipe 14 extending in the vertical direction passes through the partition plate 12 and the first spacer 21 of the first outer layer portion 51 and the second outer layer portion 52, the partial pressure in the vertical direction of the external force acting on the storage complex 11 The partition plate 12, the first spacer 21, and the main shaft pipe 14 receive the horizontal force of the external force acting on the storage complex 11, and the wall member 13 held by the first spacer 21 receives the horizontal partial pressure. In particular, even when a relatively large horizontal partial pressure of earth pressure acts on the outer peripheral surface of the outer peripheral wall 15, the outer periphery structurally more firmly held by the first outer layer portion 51 reinforced by the main shaft pipe 14. Since the wall 51 receives the partial pressure, the storage complex 11 can be more reliably prevented from being damaged.

  On the other hand, since the outer peripheral wall 15 is formed by combining a plurality of wall members 13 having the same shape, that is, a single shape wall member 13, the wall member 13, the partition plate 12 having a relatively simple shape, and the first spacer 21. By forming the storage complex 11 using, it is possible to reduce the man-hours for manufacturing the mold for molding these members. Further, since the partition plates 12 inside the second outer layer portion 52 are arranged one step apart in the vertical direction, and these partition plates 12 are connected by the second spacers 22 longer than the first spacers 21, the storage complex 11 It is possible to make a structure that can withstand a relatively low strength in a portion where the internal external pressure hardly acts. As a result, the number of parts and the number of assembly steps of the storage complex 11 can be reduced. In addition, since the 1st spacer 21 was formed in the funnel shape, when conveying each member of the storage complex 11 toward the installation place, another 1st spacer 21 in the large diameter part 21b of the 1st spacer 21. The small-diameter portion 21a is inserted, the small-diameter portion 21a of another first spacer 21 is inserted into the large-diameter portion 21b of the other first spacer 21, and the plurality of first spacers 21 are connected by repeating this operation. By doing so, the volume which the 1st spacer 21 occupies can be reduced comparatively. As a result, the conveyance efficiency of each member constituting the storage composite material 11 can be improved.

<Second Embodiment>
FIG. 15 shows a second embodiment of the present invention. 15, the same reference numerals as those in FIG. 1 denote the same components. In this embodiment, the horizontal coupling body is provided in seven stages, and includes first to seventh horizontal coupling bodies 91 to 97 in order from the bottom to the top. The first, third, sixth, and seventh horizontal coupling bodies 91, 93, 96, and 97 are formed in a square plate shape, and the second, fourth, and fifth horizontal coupling bodies 92, 94, and 95 are in a square frame shape. Formed. Moreover, the partition plate 12 inside the second outer layer portion 102 is arranged with a first step and a second step in the vertical direction. Thus, the second, fourth and fifth horizontal coupling bodies 92, 94 and 95 constitute the first and second outer layer portions 101 and 102 without the partition plate 12 being disposed inside the second outer layer portion 102. It is formed in the square frame shape which consists only of the partition plate 12 to do. Reference numeral 85 in FIG. 15 denotes an outer peripheral wall. The configuration other than the above is the same as that of the first embodiment.

  Although the structure of the storage complex 81 configured in this way is higher than the structure of the storage complex of the first embodiment and has a larger capacity, the increase in the number of parts and assembly man-hours of the storage complex 81 is suppressed. In addition, a predetermined strength can be ensured. Since operations other than those described above are substantially the same as those in the first embodiment, repeated description will be omitted.

  In the first and second embodiments, the partition plate on the inner side of the second outer layer portion is arranged one step in the vertical direction, but when the earth pressure is relatively small from the upper surface of the storage tank, You may arrange | position the partition plate inside a 1st outer-layer part 1 step apart in the perpendicular direction. Moreover, in the said 1st and 2nd embodiment, although the 1st spacer was formed in the funnel shape, you may form the 1st spacer in the cylindrical shape which has the same diameter in the longitudinal direction. Furthermore, in the said 1st and 2nd embodiment, although the storage tank which coat | covered the storage complex with the water shielding sheet was mentioned, the storage penetration tank which coat | covered the storage complex with the water-permeable sheet may be sufficient. This storage infiltration tank forms a permeable layer by spreading gravel on the bottom and side surfaces of the excavation part formed by excavating the ground, and a permeable sheet (a sheet through which rainwater can gradually pass) is formed on the bottom and side surfaces of the excavation part. ) And filling the water-permeable sheet with the storage complex. The rainwater that has flowed into the permeation tank is once stored in the permeation tank, and then penetrates and diffuses into the ground at the time of large-scale rainfall where the rainfall intensity exceeds the flow capacity of sewer pipes and the like. As a result, it is possible to prevent the overflow of sewer pipes and rivers. Here, even if the horizontal partial pressure of the external pressure acting on the storage complex acts in the direction in which it is pressed against the permeable sheet, the structurally relatively strong outer peripheral wall receives the horizontal partial pressure. In addition, damage to the water shielding sheet can be prevented.

DESCRIPTION OF SYMBOLS 10,80 Reservoir 11,81 Reservoir complex 12 Partition plate 12a-12d Cylindrical rib 13 Wall member 13b Plate-like part 14 Spindle pipe 15, 85 Outer peripheral wall 21 1st spacer 21a Small diameter part 21b Large diameter part 21c Outer groove part 22 Second 2 spacers 23 water shielding sheets 41 to 44, 91 to 97 horizontal coupling bodies 51, 101 first outer layer parts 52, 102 second outer layer parts

Claims (7)

In the structure of the storage complex filled in the storage tank or storage penetration tank,
A plurality of square plate-like partition plates having at least one cylindrical rib projecting on the lower surface and at least one cylindrical rib projecting on the upper surface;
A cylindrical first spacer that is fitted and connected to the cylindrical rib on one or both of the lower surface and the upper surface of the partition plate;
A plurality of horizontal connection bodies configured by arranging the plurality of partition plates in the same horizontal plane and connecting them to each other are provided,
A first outer layer portion is provided at least on the outermost side of the storage tank or the storage permeation tank,
The first outer layer portion is configured by alternately arranging the partition plates and the first spacers in a vertical direction,
A plurality of wall members having the same shape are engaged with the partition plate and the first spacer constituting the first outer layer portion, and an outer peripheral wall surrounding the outer peripheral surface of the first outer layer portion is formed by engaging with each other. The structure of a storage complex characterized by this.   A second outer layer portion is provided adjacent to the inner side of the first outer layer portion of the storage tank or the storage permeation tank, and a partition plate inside the first outer layer portion or inside the second outer layer portion is in a vertical direction. The structure of a storage complex according to claim 1, wherein the storage complex is arranged with one or two or more steps, and the partition plate is longer than the first spacer and connected by a second spacer extending in the vertical direction.   A plate-like portion extending in the vertical direction protrudes from the inner surface of the wall member, an outer groove portion extending in the vertical direction is formed on the outer peripheral surface of the first spacer, and the plate-like portion can be engaged with the outer groove portion. The structure of the storage complex according to claim 1.   Two cylindrical ribs are concentrically formed on the lower surface of the partition plate, two cylindrical ribs are formed concentrically on the upper surface of the partition plate, and the first spacer is formed on the small-diameter cylindrical rib. A small-diameter portion that is connected by fitting, and a large-diameter portion that is integrally formed with the small-diameter portion, has a larger diameter than the small-diameter portion, and is fitted and connected to the large-diameter cylindrical rib. The structure of the storage complex according to claim 1 or 2, which is formed in a funnel shape.   The structure of the storage complex according to claim 2, wherein a spindle pipe extending in the vertical direction is provided through the partition plate and the first spacer of the first outer layer portion or the first outer layer portion and the second outer layer portion.   A storage complex in which the storage complex according to any one of claims 1 to 5 is filled inside, an outer surface of an outer peripheral wall of the storage complex is formed in a planar shape, and the storage complex is covered with a water shielding sheet. Tank.   Storage reservoir in which the storage complex according to any one of claims 1 to 5 is filled inside, an outer surface of an outer peripheral wall of the storage complex is formed in a flat shape, and the storage complex is covered with a water-permeable sheet. Tank.

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