JP5053720B2 - Filling member and underground buried type water storage facility using the filling member - Google Patents

Description

  The present invention relates to a filling member used in a storage part that is buried underground and stores and / or infiltrates rainwater and the like, and an underground buried type water storage facility using the filling member.

  Conventionally, a filling member as shown in FIGS. 12 to 14 and an underground buried type water storage facility using the filling member are known (see, for example, Patent Document 1).

  In such a conventional filling member and an underground buried type water storage facility using the filling member, as shown in FIG. 14, a storage part 3 for storing and / or infiltrating rainwater or the like is dug down from the ground surface 1, A recess is formed in the ground 2.

  A drainage groove 4 is formed to be recessed in the bottom surface of the storage unit 3, and the periphery is covered with a waterproof sheet 5.

  And in this storage part 3, it has the inclined surface part 6a as shown in FIG. 12, the filling member 6 which has the connection leg part 6b ... in four corners, and the flat flat plate part 7b of an upper surface as shown in FIG. In addition, a plurality of filling members 7 in which a plurality of lightening holes 7a are formed are combined and connected and filled.

  Among these, the filling hole 7 has a substantially square shape in top view, and is provided with 1 to 3 oblique reinforcing rib members 8 and 8 that are integrally formed obliquely at the corner portion 7c. ing.

  In the conventional filling member configured as described above and an underground buried type water storage facility using the filling member, rainwater or the like flows into the storage part 3 of the water storage facility shown in FIG. Then, rainwater flows along the inclined surface portion 6a of the filling member 6 shown in FIG.

  Further, since the storage portion 3 is filled with the filling members 7 having a plurality of the hollow holes 7a having a substantially square shape as shown in FIG. 13, the increase in the overall weight is suppressed. The desired water storage amount (about 94.5% in this conventional example) is ensured, and the required strength is secured against the earth pressure from the surroundings and the load from above.

At this time, as shown in FIG. 13, deformation of the diagonal reinforcing rib members 8, 8 and the corner portion 7 c provided in the corner portion 7 c in the spreading direction is suppressed.
Japanese Patent No. 36601717 (paragraphs 0022 to 0068, FIGS. 1 to 12)

  However, in such a conventional filling member and an underground buried type water storage facility using the filling member, the operator has a large opening at the center of the substantially square-shaped hollow hole 7a, so It was difficult to walk on the flat part on the upper surface side.

  Further, since the hollow holes 7a are formed in a substantially square shape, there is a possibility that an object may fall downward from the hollow holes 7a, and it is difficult to say that the workability is good. .

  Further, the lower side of the filling member 7 is visually recognized from the lightening holes 7a, and there is a problem that it is difficult for an operator walking on the upper surface side to walk.

  For this reason, in order to improve the strength against the earth pressure from the surroundings and prevent the fall of the object, the oblique reinforcing rib members 8, 8 may be formed along the diagonal line of the lightening hole 7a. In this case, the amount of resin material required increases, and the weight and manufacturing cost increase, and the water storage rate may also decrease.

  Therefore, the present invention is inexpensive because the desired strength can be obtained and the water storage rate can be improved even if a hollow hole having a shape and a size with which there is little possibility of dropping a foot or dropping an object is obtained. And a lightweight filling member and an underground buried type water storage facility using the filling member.

  In order to achieve the above object, the invention described in claim 1 is used in a facility for storing and / or infiltrating rainwater, etc., and is filled in a storage section for storing rainwater and the like in vertical and horizontal directions and vertically. A filling member that has a substantially rectangular shape in plan view and has a top surface that is substantially flat on the upper surface side, and is provided with connecting legs that vertically stack the filling member at four corners of the foot plate. In addition, a grid-like reinforcing rib portion is integrally formed on the lower surface side of the tread plate portion, and the lightening region partitioned by the reinforcing rib is alternately arranged with other adjacent lightening regions. It is characterized by a filling member extending in a direction perpendicular to the longitudinal direction and having a pair of slits that are open with a bridge-shaped portion interposed therebetween.

  Further, in the present invention, the connecting rib portion is integrally connected to the lattice-shaped reinforcing rib portion on the lower surface side of the bridge-shaped portion provided between the pair of slits. The filling member according to claim 1 is formed.

  Further, according to a third aspect of the present invention, the grid-like reinforcing rib portion is continuously formed in the connecting leg portion, and an extended reinforcing rib portion connected to the outer periphery is integrally formed. The filling member according to claim 1 or 2 is characterized.

  And what was described in Claim 4 is the said reinforcement rib part connected with the inner side edge of the connection leg part located in the said four corners in the thickness reduction area | region provided along the outer periphery of the said footboard part. 2. The filling member according to claim 1, further comprising a cross-shaped cross connecting rib portion connected to each reinforcing rib portion extending in both vertical and horizontal directions.

Further, according to a fifth aspect of the present invention, the filling member according to any one of claims 1 to 4, wherein the filling member is continuously and vertically filled in the storage portion. It features an underground underground water storage facility.

  Further, according to a sixth aspect of the present invention, there is provided an inclined filler having an inclined surface having a rainwater guide function in the storage portion and having a connecting portion connectable to a connecting leg portion of the filling member. An underground buried type water storage facility using the filling member according to claim 5 which is buried in combination with the filling member.

  According to the first aspect of the present invention configured as above, the lightening region is thinned by a pair of slits formed in the lightening region of the tread plate portion.

  For this reason, the amount of the resin material or the like is reduced, the weight can be reduced, the increase in manufacturing cost is suppressed, and the water storage rate can be improved.

  A grid-like reinforcing rib portion is integrally formed on the lower surface side of the tread plate portion.

  The reinforcing rib portion, together with the bridge-shaped portion of the tread plate portion, can give the filling member necessary strength against a load from above.

  Further, even if the lightening region partitioned in a lattice shape has a substantially square shape in a top view, the bridge-like portion is positioned at a substantially central portion of the lightening region by a pair of slits formed on both sides. is doing.

  For this reason, as compared with diagonally over the diagonal line, it can be spanned at the shortest distance, and only by using a small amount of material, it is spanned so as to reduce the opening area efficiently.

  Therefore, a desired strength can be obtained even if the pair of slits are alternately formed in each of the lightening regions as a lightening hole having a shape and a size with which there is little possibility that a foot or an object will fall.

  Moreover, what was described in Claim 2 is connected by the said connection rib part so that the said grid | lattice-like reinforcement rib part may become united.

  For this reason, the strength against earth pressure from the horizontal direction can be further improved, and the strength in the in-plane and outward directions of the tread plate portion can be further improved against the load from above, so that the operator Can easily support the weight.

  Further, in the third aspect of the present invention, the extended reinforcing rib portion integrally formed in the connecting leg portion is continuously formed with the lattice-like reinforcing rib portion formed on the lower surface side of the tread plate portion, It is connected to the outer periphery.

  For this reason, between the said connection leg part and the said tread board part is integrated by substantially the same intensity | strength, and also the intensity | strength of this filling member can be improved.

  Further, in the present invention, since the cross connecting rib portion is formed in the lightening region provided along the outer peripheral edge of the tread plate portion, the tread plate portion is further provided in the vicinity of the outer peripheral edge. The strength of is improved.

  Further, the reinforcing rib portions extending in both the vertical and horizontal directions connected to the inner sides of the connecting legs located at the four corners are connected by the cross connecting rib portions.

  For this reason, sufficient strength can be given equally both vertically and horizontally, and the degree of integration between the connecting leg and the footboard can be further improved.

  Further, according to the fifth aspect of the present invention, in the underground buried type water storage facility, a filling member having a relatively small amount of material at the volume ratio is continuously provided vertically and horizontally and vertically in the storage portion. Has been.

  For this reason, the water storage rate in the said storage part can be improved.

  Further, according to a sixth aspect of the present invention, the inclined filling member is combined with the filling member and embedded in the storage portion.

  For this reason, the rainwater guide function of the inclined filling member can smoothly guide rainwater or the like to a desired drainage groove or the like, and the workability is improved by the light filling member with a small amount of the material. can do.

  Moreover, it is possible to improve the water storage rate in the storage unit at a lower cost than when the storage unit is embedded using the inclined filling member.

  Next, a filling member according to the best mode for carrying out the present invention and an underground buried type water storage facility using the filling member will be described with reference to the drawings. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

  1 to 11 illustrate a filling member according to an embodiment of the present invention and an underground buried type water storage facility using the filling member.

  First, in this embodiment, a storage portion 13 for storing and / or infiltrating rainwater or the like is dug down from the ground surface 1 and is formed in a recessed manner in the underground 2.

  As shown in FIGS. 8 and 9, the storage portion 13 is provided continuously in the vertical and horizontal directions and vertically, and has substantially the same shape as the lattice material 11 as a filling member and the conventional filling member 6 shown in FIG. 12. A plurality of inclined filling members 12... And a gradient material zone 13 b configured by combining only the lattice materials 11... And an inclined material zone 13 b configured by combining the inclined fillers 12. It is mainly composed.

  Further, as shown in FIG. 9, lattice material 11 is laminated and connected to the upper part of the inclined filler 12 located on the uppermost side of the inclined material zone 13b. Thus, the inclined material + grid material zone is configured.

  A U-shaped groove 14 as a drainage groove is formed in the bottom surface of the storage portion 13 so as to be recessed, and the periphery is covered with the waterproof sheet 5.

  In the vicinity of both end portions of the U-shaped groove 14, inspection ports 15 and 15 are provided as shown in FIG. 8, and as shown in FIG. A rainwater inflow port 16 is formed as a means for introducing rainwater.

  And the rainwater which flowed in into the said storage part 13 from this rainwater inflow port 16 entraps impurities, such as earth and sand, by the rainwater guide function which the inclined surface part of each inclination filling member 12 of the said inclination material zone 13b has. However, it is configured to flow down while being guided toward the U-shaped groove 14.

  Next, the structure of the lattice material 11 will be described in detail with reference to FIGS.

  The lattice material 11 as one of the fillers of this embodiment is shown in FIGS. 8 and 9 in the storage section 13 of the underground buried water storage facility as a facility for storing and / or infiltrating rainwater or the like. Thus, it fills and is used, and it fills up and fills in the storage part 13 which stores rainwater etc. vertically and horizontally and up and down.

  This lattice material 11 has a tread plate portion 17 which has a substantially square shape in plan view and whose upper surface side is substantially flat.

  At the four corners of the tread plate portion 17, connecting leg portions 18 are respectively provided.

Each of the connecting legs 18 has a right isosceles triangular shape with the inner side 18c as a long side,
A concave portion 18a is formed on the upper surface side of the connecting leg portion 18 and a convex portion 18b is formed on the lower surface side. When the lattice material 11 is stacked in the vertical direction, The grid member 11 or the protrusion 18b or the recess 18a of the connecting leg 18 of the inclined filling member 12 is connected by fitting.

  A lattice-shaped reinforcing rib portion 19 is integrally formed on the lower surface side of the tread plate portion 17.

  In the lattice material 11 of this embodiment, as shown in FIG. 3, the vertical rib members 19a and the horizontal rib members 19b, in which the reinforcing rib portions 19 are arranged orthogonally to each other at a predetermined interval, Seven of each are provided.

  In this embodiment, the vertical rib members 19a have substantially the same dimensions as the downward projecting dimensions of the outer frame members 20 provided along the outer peripheral edges of the four sides of the tread plate portion 17. ... and the lateral rib member 19b ... the lower edge is set so as to be at substantially the same height as the lower edge of the outer frame member 20.

  In addition, the tread plate portion 17 is formed by the vertical rib members 19a and the lateral rib members 19b so as to have a substantially square shape along the plurality of the lightening regions 21a and the outer frame member 20. A meat removal region 21b formed continuously on the circumference is partitioned.

  Among these, a pair of long hole-shaped slits 22a and 22a that are alternately extended in the longitudinal direction orthogonal to other adjacent lightening regions 21b are provided in the lightening region 21b. An opening is formed with 23 therebetween.

  As shown in FIGS. 3 and 5, the bottom surface of the bridge-like portion 23 provided between the pair of slits 22a and 22a is connected to the lattice-shaped reinforcing rib portion 19 so as to be integrated therewith. A connecting rib portion 24 is formed.

  In this embodiment, both end portions of the reinforcing rib portion 19 on the lower surface side of the bridge-like portion 23 are connected so as to be integrated with each other at the approximate center of the side surface of the vertical region 21a side of the vertical and horizontal rib members 19a, 19b. ing.

  Further, each of the lightening regions 21b is formed with four lightening square holes 22b... Arranged in a square shape.

  A cross-shaped cross connecting rib portion 26 is formed on the lower surface side of the lightening region 21b.

  The cross connecting rib portion 26 is connected so that both end portions 26a, 26a are integrated with each other at the approximate center of the side surface of the vertical region 21b side of the vertical and horizontal rib members 19a, 19b.

  Further, as shown in FIG. 5, in the lightening region 21b located inside the inner side 18c of the connecting leg 18 located at the four corners, an extended reinforcing rib that extends through the inner side 18c. End portions 26a, 26a are connected to both the portions 25, 25 and the vertical rib members 19a and the horizontal rib members 19b, respectively.

  Further, the extended reinforcing rib portions 25, 25 are located in the connecting leg portion 18, and the vertical rib member 19a and the horizontal rib member 19b of the lattice-like reinforcing rib portion 19 are continuously formed, and are formed on the outer periphery. The end portions 25a and 25a are connected so as to be integrated.

  Furthermore, in this embodiment, as shown in FIG. 5, there is a gap between the inner side 18c of the connecting leg 18 and the vertical rib members 19a and the lateral rib members 19b connected to the inner side 18c. In addition, the lightening regions 21c and 21c having a substantially isosceles triangular shape are partitioned and formed.

  In the thinned regions 21c and 21c, thinned triangular holes 22c and 22c are formed, respectively.

  Next, the function and effect of this embodiment will be described.

  In this embodiment, the lightening region 21a is thinned by a pair of slits 22a and 22a formed in the lightening region 21a of the tread plate portion 17.

  For this reason, the amount of the resin material or the like is reduced, the weight can be reduced, the increase in manufacturing cost is suppressed, and the water storage rate can be improved.

  For example, in the lattice material 11 of this embodiment, the weight can be reduced by about 25% as compared with the filling member 6 having the inclined surface portion 6a as shown in FIG. Is improved from about 94.7% to 95.2% in the case of being configured with the filling member 6 to about 93.7% to 94.2% in the case of being configured with the lattice material 11 all. be able to.

  Further, vertical and horizontal rib members 19 a and 19 b of the lattice-shaped reinforcing rib portion 19 are integrally formed on the lower surface side of the flat tread plate portion 17.

  The reinforcing rib portion 19 can give the necessary strength to the lattice material 11 with respect to the load from above together with the bridge-like portions 23 of the tread plate portion 17.

  Moreover, even if the said hollow area | region 21a ... divided by the grid | lattice form is a top view substantially square shape, the said bridge-shaped part 23 of the thinning area | region 21a by a pair of slit 22a, 22a located in both sides. Located in the approximate center.

  For this reason, it is possible to hang over the diagonal line so that the opening area can be efficiently reduced by using a small amount of resin material that can be laid over at the shortest distance as compared with hanging over diagonally.

  Accordingly, even if the pair of slits 22a and 22a are formed in the respective lightening regions 21a as the lightening holes having a shape and size with which there is little possibility that a foot or an object will fall, a desired strength can be obtained. It is done.

  In this embodiment, the opening width of the slit 22a is set to be within 3 cm that satisfies the safety standard. For this reason, unlike the conventional case, there is little possibility that an operator will be caught by a toe and stepped on or an object may fall.

  In addition, in this embodiment, the pair of slits 22a, 22a has slits 22a, 22a arranged in the direction perpendicular to the longitudinal direction in the other adjacent lightening regions 21a. Further, as compared with the case where the slits 22a are arranged, it is possible to further reduce the possibility that a foot is taken or an object falls.

  Furthermore, since the lower side of the tread plate portion 17 is difficult to be visually recognized, the operator can walk on the lattice material 11 without feeling fear, and the workability can be improved.

  Further, in this embodiment, as shown in FIG. 3 or FIG. 5, the connecting rib portion 24, between the vertical rib members 19 a and 19 a arranged adjacent to the lattice-like reinforcing rib portion 19, and the lateral rib member 19b and 19b are connected so as to be integrated.

  For this reason, the strength against the earth pressure from the horizontal direction can be further improved, and the strength in the in-plane and outward directions of the tread plate portion 17 can be further improved against the load from above. A person's weight can be easily supported.

  Further, as shown in FIG. 5, the extended reinforcing rib portions 25, 25 formed integrally in the connecting leg portion 18 are vertically and horizontally arranged in a lattice-like reinforcing rib portion 19 formed on the lower surface side of the tread plate portion 17. It is formed continuously with the rib members 19a and 19b, and is connected to the end portions 25a and 25a on the outer periphery constituted by the outer frame members 20 and 20.

  For this reason, between each said connection leg part 18 ... and the said tread board part 17 is integrated by substantially the same intensity | strength, and also the intensity | strength of this lattice material 11 can be improved.

  Further, since the cross connecting rib portion 26 is formed in the lightening region 21b provided along the outer peripheral edge of the tread plate portion 17, the strength of the tread plate portion 17 is further improved in the vicinity of the outer peripheral edge. To do.

  Further, the vertical and horizontal rib members 19a and 19b of the reinforcing rib portion 19 connected to the inner side 18c of the connecting leg portion 18 located at the four corners and extending in both the vertical and horizontal directions are connected together by the cross connecting rib portion 26. ing.

  For this reason, sufficient strength can be given equally both vertically and horizontally, and the degree of integration between the connecting leg portion 18 and the footboard portion 17 can be further improved.

  Moreover, in the underground buried type water storage facility of this embodiment, as shown in FIGS. 8 and 9, the lattice material 11 with a relatively small amount of resin material at the volume ratio is contained in the storage unit 13. Filled vertically and horizontally and vertically.

  For this reason, the water storage rate in the said storage part 13 can be improved.

  Furthermore, the conventional inclined filling member 12 having substantially the same shape as the filling member 6 having the inclined surface portion 6a as shown in FIG. 12 is provided with portions corresponding to the connecting leg portions 6b at the four corners.

  8 and FIG. 9 together with the grid material 11 and the inclined filling members 12 are connected by being connected to the connecting leg portions 18 of the grid material 11 placed above. As shown in FIG. 3, the storage unit 13 is embedded in combination.

  For this reason, the rainwater guide function of the filling member 12 can smoothly guide rainwater or the like to the desired U-shaped groove 14 or the like, and the workability is improved by the light lattice material 11 with a small amount of the resin material. Can be made good.

  In addition, it is possible to improve the water storage rate in the storage unit 13 at a lower cost than when the storage unit 13 is embedded using the inclined filling member 12.

  10 and 11 show an underground buried type water storage facility using a lattice material 11 as a filling member of Example 1 of the embodiment of the present invention.

  First, the structure of this underground buried type water storage facility will be described. In Example 1, as shown in FIG. 11, the upper surface side of the slanting material zone 113b is formed in a slanted manner in a step shape, and only the lattice material 11. The volume ratio of the grid material zone 113a constituted by the volume ratio of the grid material zone 113a of the underground buried type water storage facility in which the inclined material zone 113b is formed in the rectangular parallelepiped shape of the embodiment shown in FIGS. Can also be set larger.

  Next, the effect of the filling member of Example 1 and the underground buried type water storage facility using the filling member will be described.

  In the first embodiment, the upper surface side of the inclined material zone 113b is formed in a stepwise manner and the volume ratio of the lattice material zone 113a composed only of the lattice material 11... Is shown in FIGS. It is set to be larger than the volume ratio of the lattice material zone 113a of the underground buried type water storage facility in which the inclined material zone 13b is formed in the rectangular parallelepiped shape of the embodiment.

  Therefore, as shown in FIG. 11, the horizontal distance A from the rainwater inlet 16 to the U-shaped groove 14 is the U-shape from the rainwater inlet 16 of the embodiment shown in FIG. Even if it is longer than the distance B in the horizontal direction up to the groove 14, rainwater or the like can be smoothly guided to a desired drainage groove or the like.

  Therefore, an increase in the number of the inclined filling members 12 is suppressed, and the volume ratio of the lattice material zone 113a composed of the light lattice materials 11 can be increased to improve the workability and at a low cost. Further, the water storage rate in the storage unit 113 can be further improved.

  Other configurations and operational effects are the same as or equivalent to those of the above-described embodiment, and thus description thereof is omitted.

  As mentioned above, although embodiment and Example 1 of this invention were explained in full detail with reference to drawings, the concrete structure is not limited to this embodiment, and the design of the grade which does not deviate from the summary of this invention Modifications are included in the present invention.

  That is, in the embodiment and Example 1, in combination with the inclined filling member 12, the lattice material 11... Is filled in the storage portion 13 or 113. The storage material 13 or 113 may be filled using the lattice material 11 as a filler, and a pair of slits 22a, 22a sandwiching the bridge-shaped portion 23 in a row in the vertical and horizontal directions. And if it is the filling member by which opening formation is carried out, a shape, quantity, and a material will not be specifically limited.

It is a perspective view explaining the whole structure of a lattice material with the filling member of the best embodiment of this invention. It is a top view of a lattice material in a filling member of an embodiment. It is a filling member of an embodiment, and is a bottom view of a lattice material. It is a filling member of an embodiment and is a side view of a lattice material. FIG. 4 is an enlarged bottom view of a corner portion of the filling member according to the embodiment. It is a filling member of an embodiment, and is a bottom view of a connection leg part. It is a filling member of an embodiment, and is a bottom view of a lattice material. It is a top view of the underground buried type water storage facility which has a water storage part which combined the inclination filling member and the grid | lattice material with the filling member of embodiment. FIG. 9 is a side view of the underground embedding type water storage facility having a water storage unit that is a combination of an inclined filling member and a lattice material, as viewed from the direction of arrow A in FIG. 8. It is a filling member of Example 1 of an embodiment, and is a top view of an underground buried type water storage facility which has a water storage part which combined an inclined filling member and a lattice material. FIG. 9 is a side view of an underground buried type water storage facility having a water storage unit that is a combination of an inclined filling member and a lattice material, as viewed from the direction of arrow A in FIG. It is a perspective view which shows an example of the filling member which has an inclined surface part of a prior art example. It is a perspective view which shows an example of the filling member of a prior art example. It is a longitudinal cross-sectional view of an underground buried type water storage facility using the filling member of a prior art example.

Explanation of symbols

11 Grid material (filling member)
DESCRIPTION OF SYMBOLS 13,113 Storage part 17 Footplate part 18 Connection leg part 19 Reinforcement rib part 19a Vertical rib member 19b Horizontal rib member 20 Outer frame material 21a, 21b, 21c Meat removal area 22a, 22a Slit 23 Bridge-like part 24 Connection rib part 25 Extension Reinforcement rib 26 Cross connecting rib

Claims (6)

A filling member that is used in a facility for storing and / or infiltrating rainwater, etc., and is continuously and vertically filled in a storage section for storing rainwater and the like,
The tread has a substantially rectangular shape in plan view, and has a tread plate that has a substantially flat upper surface. At the four corners of the tread plate, there are provided connecting legs that stack the filling members in the vertical direction, and the bottom surface of the tread plate. On the side, a grid-like reinforcing rib portion is integrally formed, and the thinning region partitioned by the reinforcing ribs is extended with the longitudinal direction alternately orthogonal to other adjacent thinning regions. A filling member, wherein a pair of slits to be provided are formed with a bridge-shaped portion interposed therebetween.   The connecting rib portion connected to the lattice-shaped reinforcing rib portion so as to be integrated with each other is formed on a lower surface side of the bridge-like portion provided between the pair of slits. The filling member according to 1.   3. The extension reinforcing rib portion connected to the outer periphery is integrally formed in the connecting leg portion, and the lattice-like reinforcing rib portion is formed continuously. 4. Filling member.   Reinforcing portions extending in both vertical and horizontal directions among the reinforcing rib portions connected to the inner sides of the connecting leg portions located at the four corners in the lightening region provided along the outer peripheral edge of the tread plate portion. The filling member according to claim 1, further comprising a cross-shaped cross connecting rib portion connected to the rib portion. The underground filling type water storage facility using the filling member according to any one of claims 1 to 4 , wherein the filling member is continuously and vertically filled in the storage portion.   An inclined surface having a rainwater guide function is provided in the storage portion, and an inclined filler having a connecting portion connectable with a connecting leg portion of the filling member is embedded in combination with the filling member. An underground buried water storage facility using the filling member according to claim 5.

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