JP4452592B2 - Rainwater outflow control facility - Google Patents

Description

  The present invention relates to a rainwater outflow suppression facility that reduces the load on rivers and sewerage facilities by temporarily storing rainwater and allowing it to permeate or drain during rainfall.

  Conventionally, rainwater outflow suppression facilities as shown in FIGS. 20 and 21 are known (see, for example, Patent Document 1).

  First, when it demonstrates from a structure, in this conventional rainwater outflow suppression facility, the storage part 2 which dug down the ground 1 and was recessedly formed is formed.

  Since the storage unit 2 temporarily stores rainwater or the like, the side wall surface and the bottom surface are covered with the covering sheet 3.

  In addition, a plurality of filling members 5 as shown in FIG. 21 are provided in the storage portion 2 so as to form a storage space 4 that are connected vertically and horizontally and vertically.

  The filling member 5 has a substantially hollow box shape in which one of the upper and lower side surfaces 5a is opened, and a plurality of communication holes 5d ... or 5e ... are vertically and horizontally formed on each side wall surface 5b ... or bottom surface 5c. It is arranged and formed.

  And the upper part of these filling members 5 ... is covered by laminating | stacking the planar material 6 ... which consists of synthetic resin nets, and covering soil 7 ... alternately.

  Moreover, as shown in FIG. 22, the filling member 11 which supports the rib members 9 and 10 by several support | pillar elements 8 ... is also known (for example, refer patent document 2 etc.).

  Next, the operation of this conventional rainwater outflow control facility will be described.

  In the rainwater outflow suppression facility described in the conventional FIG. 20 and FIG. 21 configured as described above, when rainwater enters the storage space 4 formed in the storage unit 2 due to rain, these rainwaters are It stays in this storage space 4 temporarily.

  For this reason, even if a large amount of rain falls at a time, it is temporarily stored in the storage space 4 formed in the storage part 2 of this rainwater outflow control facility, thereby mitigating rapid water increase due to heavy rain in rivers and sewer facilities. be able to.

  Moreover, in the conventional filling member 11 shown in FIG. 22, the said rib members 9, 10 grade | etc., Are connected and supported by the some support | pillar element 8 ....

For this reason, even if a predetermined upper load is applied to these filling members 11 from above, the upper load is dispersed in each of the column elements 8 and sufficient support rigidity is obtained.
JP 2000-199246 A (paragraphs 0019 to 0035, FIGS. 1 and 2) Japanese Patent No. 3198479 (paragraphs 0018 to 0042, FIGS. 1 and 2)

  However, in such a conventional rainwater outflow suppression facility, for example, in the one shown in FIGS. 20 and 21, the sheet material 6... And the covering so as to cover substantially the entire upper surface of the storage space 4. Unless the soils 7 are alternately laminated, it is impossible to disperse the local loading load and prevent the ground surface from sinking.

  For this reason, at the time of construction, the planar materials 6 and the covering soil 7 have to be alternately backfilled over several layers, and it is difficult to say that the work efficiency is good.

  Further, when the covering soil 7 is thin, there is a possibility that a sufficient effect cannot be obtained.

  Further, when a road, a parking lot, or the like is applied to a part above the storage unit 2 and a vehicle or the like enters, it is conceivable that a large amount of the planar material 6 is partially installed.

  Even in this case, it is expensive to lay the planar material 6 alternately with the covering soil 7, and depending on the laying location, many planar materials 6 may not be laid.

  Furthermore, in the conventional apparatus as shown in FIG. 22, when the number of the column elements 8 is increased to correspond to the loading load, the increase in the capacity of these column elements 8 is equivalent to the amount of rainwater in the storage space. There was also a problem that the amount of storage decreased.

  Therefore, the present invention has an object to provide a rainwater outflow suppression facility that has good workability, can cope with a local loading load, and can secure a predetermined amount of rainwater stored in the storage space. Yes.

In order to achieve the above-mentioned object, the invention described in claim 1 is a rainwater outflow that forms a storage space by connecting filling members vertically and horizontally in a storage section in the ground for temporarily storing rainwater and the like. In the restraint facility, the filling member has a plate-like shape having a substantially square shape in plan view, and has connecting portions for stacking the filling member in the vertical direction at the four corners. Of the filling members, the filling member is directly above the uppermost filling member. Corresponds to each filling member, and a flat plate-like reinforcing member is individually placed. The reinforcing member is made of a synthetic resin material, and has the same shape as the filling member in plan view. A connecting portion is provided, and the reinforcing member and the filling member are connected via a connecting member having an upper and lower fitting portion fitted into the connecting portion of the reinforcing member and the connecting portion of the filling member with a flange portion interposed therebetween. Connected and loaded by the reinforcing member from the ground surface And it is characterized in runoff suppression facility to convey the four corners of the filling member and the reinforcing member.

Further, what is described in claim 2 is characterized by the rainwater outflow suppression facility according to claim 1, wherein the reinforcing member is used by being laminated in two or more.

Then, those described in claim 3, the reinforcing member, the laying on the bottom of the reservoir, according to claim 1 or formed into the same shape as the plate-like support member for supporting the filling member from below It features the rainwater outflow control facility described in 2 .

  According to the first aspect of the present invention configured as described above, an upper load is applied to the flat reinforcing member individually placed directly on the uppermost filling member from above, among the filling members. When added, the loading load is dispersed and supported from below by the filling members that are connected in the vertical and horizontal directions and the vertical direction constituting the storage space.

  For this reason, the local loading load is also distributed and received in a wide area, and sufficient support rigidity can be obtained with respect to various assumed loading loads, and the ground surface can be prevented from sinking.

  Moreover, since the covering soil can be backfilled only by placing the flat reinforcing member directly above the filling member provided vertically and horizontally and vertically, the construction workability is good.

  Furthermore, since a desired support rigidity can be obtained regardless of the thickness of the covering soil, the site compatibility is good.

  And since the said reinforcement member is mounted directly on the said filling member, there is no possibility that the capacity | capacitance of storage space may be reduced and the storage amount of the rainwater in desired storage space can be ensured easily.

  Further, since the reinforcing member is made of a synthetic resin material, the reinforcing member that is lightweight and has sufficient rigidity can be constructed manually. Moreover, since the vertical load can be transmitted to the four corners in the same plane shape as the filling member, a greater support strength can be obtained.

  Furthermore, by providing a rib structure on the back side, sufficient rigidity that is lighter and strong against bending can be obtained.

  In addition, the molding is easy, and the production cost can be reduced by mass production.

Further, in the second aspect of the present invention, since two or more reinforcing members are used by being laminated, a desired strength can be obtained regardless of the thickness of the covering soil.

  That is, even when the thickness of the covering soil is thin, it is possible to ensure the strength to cope with.

  Moreover, the increase in manufacturing cost can be suppressed compared with the case where the reinforcing member which has the thickness which laminated | stacked the same 2 sheets or more on one sheet is shape | molded separately.

According to a third aspect of the present invention, the reinforcing member is laid on the bottom surface of the storage portion and formed in the same shape as a plate-like support member that supports the filling member from below.

  For this reason, the said plate-shaped support member and this reinforcement member can be shared using the same thing, and also the increase in manufacturing cost is suppressed.

  Next, a rainwater outflow suppression facility of the best mode for carrying out the present invention will be described with reference to the drawings.

  In addition, the same code | symbol is attached | subjected and demonstrated about the same or equivalent part as the said prior art example.

  FIG. 1 thru | or FIG. 19 demonstrates the rainwater outflow suppression facility of embodiment of this invention.

  First, the structure will be described. As shown in FIG. 4, the rainwater outflow suppression facility 20 according to the embodiment of the present invention includes a side groove 21 a of the sidewalk 21, a schoolyard 22 a of the school 22, a park 23, a parking lot 24, or The storage part 2 is provided by digging down the ground 1 of a site such as a building 25 having the rainwater pipe 25a and being recessed.

  In the storage part 2 of these rainwater outflow control facilities 20, as shown in FIG. 1, the center part of the bottom face part 2a is further dug down one step further to form a groove part 2c for installing the U-shaped groove 2d.

  And in order to temporarily store rainwater etc., while the bottom face part 2a and the side wall surface part 2b are covered with the covering sheet 3, it is continuously provided vertically and horizontally in this storage part 2, and the filling member 27 ... A plurality of storage spaces 26 are formed.

  1 to 14 show the rainwater outflow suppression facility 20 according to the first embodiment.

  In the rainwater outflow control facility 20 according to the first embodiment, the filling member 27 is made of a synthetic resin material such as polypropylene as shown in FIGS. 6 and 7, and has a constant inclination angle with respect to the horizontal plane. (In the first embodiment, about 5 degrees), the inclined plate portion 27a having a substantially square shape when viewed from above, and other fillings integrally formed at the four corners of the inclined plate portion 27a and connected to the upper portion. .. And mainly four supporting leg pillar portions 27b, 27b,... For supporting loads such as reinforcing members 30, 30 described later.

  Of these, the inclined plate portion 27a is configured to have a size and weight that can be carried by human power, with a side of about 0.5 to 1.2 m and a thickness of about 4 to 5 mm. Depending on the angle, the inflowing rainwater is guided in a predetermined direction s indicated by an arrow in the figure, so that the supporting leg columns 27b on the opposite side from between the supporting leg columns 27b, 27b located at both corners of the one side are provided. It is fixed in an inclined state so as to descend toward 27b.

  On the back surface side of the inclined plate portion 27a, a plurality of reinforcing rib portions 27c... Having a lattice shape are formed by being erected so as to be integrated vertically and horizontally at a predetermined interval.

  The support leg portions 27b each have a substantially right-angled isosceles triangle shape, are fitted inside the upper column portion 27d having a triangular cylindrical column shape, and are connected in a substantially triangular shape so that they can be continuously provided. A lower pillar portion 27e is formed in which a piece is erected.

  Further, in the first embodiment, as shown in FIGS. 1 and 2, the inclined plate portion 27a is mounted between the supporting leg column portions 27b and 27b of the filling members 27 and 27 connected vertically. Connecting members 28... That can adjust the height position are provided.

  The connecting member 28 has a triangular prism shape having a substantially isosceles right triangle shape in a top view, and as shown in FIGS. 8 to 11, the upper connecting portion 28a and the upper connecting portion 28e to which the lower column portion 27e is fitted and connected. A lower connecting portion 28b to which the column portion 27d is fitted is integrally provided.

  Further, the connecting member 28 has a projection 28c protruding from one of the two perpendicular surfaces 28e and 28f that are orthogonal to each other on one of the vertical surfaces 28e.

  Further, of the two orthogonal vertical surfaces 28e and 28f on the outside of the connecting member 28, the other vertical surface 28f is inserted and fitted with the joint convex portion 28c of another connecting member 28 arranged adjacent thereto. A bonding hole 28d to be attached is formed as an opening.

  And, among these filling members 27..., A flat plate-like reinforcing member 30 is individually provided corresponding to each filling member 27 just above the filling member 27 that is positioned at the top and arranged in parallel in the vertical and horizontal directions. It is placed.

  As shown in FIGS. 12 to 14, the reinforcing member 30 of the first embodiment is made of a synthetic resin material such as polypropylene, and has a horizontal plate portion 30a having a substantially square shape when viewed from above, and the horizontal plate portion 30a. The connecting portions 30b formed at the four corners on the back surface side, and a plurality of reinforcing rib portions 30c having a lattice shape by being erected so as to be integrated vertically and horizontally at predetermined intervals on the back surface side. It is mainly composed.

  Of these, the horizontal plate portion 30a has a side of about 0.5 to 1.2 m, is approximately the same size as the inclined plate portion 27a of the filling member 27, and can be easily applied even when an overload is applied from above. It has a predetermined thickness that does not bend (in the first embodiment, about 4 to 5 mm or more), and is configured to have a size and weight that can be carried by human power.

  In addition, a plurality of small holes 30d are formed in the horizontal plate portion 30a at predetermined intervals so that air and rainwater communicate with each other in the vertical direction.

  The connecting portions 30b are configured so that they can be connected to each other by fitting the lower connecting portions 28b of the connecting member 28 into the connecting openings of a substantially right isosceles triangle shape.

  That is, in the first embodiment, as shown in FIG. 5, the reinforcing member 30 is laid on the bottom surface portion 2 a of the storage portion 2 from below by turning the back surface side of the reinforcing member 30 upward. By being formed into the same shape as the plate-like support member 50 that supports the filling member 27, it is shared.

Furthermore, when the reinforcing members 30 and 30 of the first embodiment are placed right above the filling member 27, two reinforcing members are stacked and the four corners are welded to form the reinforcing body 40. Has been. The method of integrating the two sheets is not limited to welding, and it is sufficient if integration such as mechanical fitting is possible.

  Between the reinforcing body 40 and the filling member 27, upper connecting members 38 are interposed, and the space between the reinforcing member 30 provided below the reinforcing body 40 and the filling member 27 is interposed. It can be installed in series.

  The upper connecting member 38 has a hollow triangular prism shape having a substantially right triangle shape when viewed from above, and is formed on the upper and lower side surfaces with respect to the connecting portion 30b of the reinforcing member 30 or the upper column portion 27b of the filling member 27. The fitting portions 38a and 38a to be fitted and connected are formed with the flange portion 38b interposed therebetween.

  Next, the effect | action of the rainwater outflow suppression facility of this Example 1 is demonstrated.

  First, the construction sequence of the rainwater outflow suppression facility according to the first embodiment will be described. When the rainwater outflow suppression facility is constructed, the storage section 2 is excavated on the ground 1 and then in FIG. As shown, upstream rainwater masses 41 and 42 are installed upstream of the storage unit 2, and downstream rainwater masses 43 are installed downstream of the storage unit 2.

  And as shown in FIG. 1, the water-impervious sheet | seat 3a is laid in the bottom face part 2a, and the U-shaped groove | channel 2d is formed in the part where the said groove part 2c went down one step from the said upstream rainwater mass 42 to the downstream rainwater mass 43. It is installed extending in the direction.

  Then, the plate-like support member 50 having the same shape as the reinforcing member 30 is laid side by side vertically and horizontally with the back side of the reinforcing member 30 turned upside down.

  Next, the connecting members 28 shown in FIGS. 8 and 9 are fitted into the connecting portions 30 b formed on the back side of the plate-like support members 50.

  At this time, as shown in FIGS. 10 and 11, the connecting members 28, 28 at the corners of the adjacent plate-like support members 50, 50 adjacent to each other are joined convexly formed on the vertical surface 28 e. The portion 28c is inserted and fitted into the joint hole portion 28d of the other connecting member 28 formed on the opposing vertical surface 28f.

  For this reason, the plate-like support members 50 and 50 arranged adjacent to each other in the vertical and horizontal directions are also connected to prevent the individual plate-like support members 50 from sinking in the vertical shear direction.

  Further, as shown in FIG. 2, the filling members 27 and the connecting members 28 are stacked alternately or continuously from above the connecting members 28.

  At this time, the upper and lower column portions 27d and 27e formed on the support leg column portion 27b of the filling member 27 are the upper, lower column portions 27d and 27e, or the connecting member 28. The upper and lower connecting portions 28a and 28b are fitted.

  For this reason, in the vertical direction, the filling members 27 are stacked and connected while being appropriately adjusted in height either directly or via the connecting members 28.

  Further, in the first embodiment, the filling member 27 and the connecting members 28, 28 at the corners interposed between the filling member 27 are connected to each other as shown in FIGS. A projection 28c protruding from 28e is inserted and fitted into a junction hole 28d of another connecting member 28 formed on the opposing vertical surface 28f.

  For this reason, the filling members 27, 27 that are positioned above and below the connecting member 28 and adjacently arranged in the vertical and horizontal directions are also connected in the vertical and horizontal directions, and the individual filling members 27 in the vertical shear direction. Is prevented from sinking.

  Accordingly, sufficient support rigidity can be obtained with respect to the loading load.

  Then, in the state where the uppermost filling member 27 has been placed, as shown in FIG. 5, the lower connecting portions 38... Are respectively fitted to the upper column portions 27 d of the filling member 27. While the fitting portions 38a are fitted, the reinforcing body 40, in which the two reinforcing members 30, 30 are laminated and welded in advance, is further placed from above.

  At this time, the connecting portions 30b formed on the back surface side of the reinforcing member 30 are fitted into the upper fitting portions 38a of the upper connecting members 38, respectively.

  For this reason, the reinforcing body 40 formed by laminating the flat plate-like reinforcing members 30, 30 has the upper connecting members 38... Directly above the filling member 27 as shown in FIG. It is placed individually with interposition.

  Furthermore, the storage part 2 comprised by these some filling members 27 ... and the reinforcement body 40 ... is covered with the coating sheet 3a, and rainwater etc. are temporarily stored by a fixed amount.

  On the upper surface side of the covering sheet 3a, the covering soil 7 having a predetermined thickness is again placed and backfilled so that the height of the ground surface is substantially flush with the height of the ground 1 in the other part of the site. Is adjusted, and the work is almost completed.

In the rainwater outflow suppression facility 20 of this Example 1 constructed in this way, when rainwater enters the storage space 26 formed in the storage part 2 from the upstream rainwater masses 41, 42, etc., due to rain. These rainwaters temporarily remain in the storage space 26.

  For this reason, even if a large amount of rain falls at a time, it is temporarily stored in the storage space 26 formed in the storage part 2 of the rainwater outflow suppression facility 20 until it exceeds a certain capacity, and heavy rain such as in rivers and sewer facilities The sudden increase in water due to the

  Then, sand and gravel are accumulated in the direction of the U-shaped groove 2d together with rainwater that has entered from the upstream rainwater masses 41, 42, etc., at a certain inclination angle formed in the filling member 27 and the inclined plate portion 27a. For this reason, maintainability is also good.

  Further, when an upper load is applied to the flat reinforcing member 30 individually placed directly on the filling member 27 from above, the upper loading is distributed at the four corners of the flat horizontal plate portions 30a and 30a. The load is transmitted to the support leg portions 27b located at the four corners of the filling members 27 that are connected in the vertical and horizontal directions and the upper and lower sides constituting the storage space 26.

  The connecting members 28... Fitted on the respective support leg portions 27b are fitted through the other connecting members 28 arranged adjacent to each other, the joining convex portions 28c and the joining hole portions 28d. Therefore, the upper load is distributed not only in the vertical direction but also in the vertical and horizontal directions via the connecting members 28, and transmitted to the lower filling members 27, so that the plate shape located at the lowest position is provided. It is supported from below by the support members 50.

  For this reason, the local loading load is also dispersed and received in a wide area near the substantially entire surface of the bottom surface portion 2a of the storage portion 2, and sufficient support rigidity is provided for various assumed loading loads. Can be obtained, and the sinking of the ground surface can be prevented.

  Moreover, the covering soil 7 can be backfilled only by mounting the flat reinforcing member 30 just above the filling member 27 that is continuously provided vertically and horizontally. Since the backfilling of the covering soil 7 may be performed in a single layer, as compared with the conventional method, the surface material 6 and the covering soil 7 should be backfilled alternately over several layers as in the conventional case. The construction workability is good.

  Furthermore, since desired support rigidity is obtained irrespective of the thickness of the covering soil 7, site compatibility is good.

  And since the said reinforcement member 30 is mounted right above the said filling member 27, there is no possibility of reducing the capacity | capacitance of the storage space 26, and the storage amount of the rainwater in the desired storage space 26 can be ensured easily.

  Further, since the reinforcing member 30 is made of a synthetic resin material, the reinforcing member 30 that is lightweight and has sufficient rigidity can be constructed manually.

  In Example 1, in order to obtain better strength, the reinforcing member 40 is configured by laminating two reinforcing members 30 and 30 in advance and welding the vicinity of the four corners. Even if it becomes two sheets, it can be stored in the weight which can be constructed manually.

  Furthermore, in the first embodiment, a plurality of reinforcing rib portions 30c are vertically installed so that the back side of the reinforcing member 30 is integrated vertically and horizontally at a predetermined interval as shown in FIG. Since the rib structure has a lattice shape, it is possible to obtain a sufficient rigidity that is lighter and strong against bending with respect to an overload.

  Further, since it is made of a synthetic resin material, molding such as injection molding is easy, and the manufacturing cost can be reduced by mass production.

  Furthermore, since the two or more reinforcing members 30 are used by being laminated, a desired strength can be obtained regardless of the thickness of the covering soil 7.

  Further, the setting of the number of the reinforcing members 30... Stacked locally can be changed according to the height of the ground surface, the state of the covering soil 7 and the like.

  At this time, the reinforcing members 30... Formed by the same injection mold can be used as compared with the case where the reinforcing members having a thickness in which two or more of the same ones are laminated are individually molded. This eliminates the need for a molding die and suppresses an increase in manufacturing cost.

  Moreover, in the first embodiment, the two reinforcing members 30 and 30 are laminated in advance, and the vicinity of the four corners is welded to form the reinforcing body 40.

  Therefore, the reinforcing body 40 in which the reinforcing rib portions 30c and 30c having the lattice shape are stacked in two layers on the upper and lower sides is obtained as a single body, and the height of the reinforcing rib portion 30c is simply formed. Compared with the structure in which the thickness of the sheath member 30 is increased to improve the strength, the reinforcing efficiency is good, the improvement in rigidity against weight can be improved, and the strength can be dramatically increased.

  And in this Example 1, the said reinforcement member 30 is laid in the bottom face part 2a of the said storage part 2, and is formed in the same shape as the plate-shaped support member 50 which supports the said filling members 27 ... from below. Yes.

  For this reason, the plate-like support member 50 and the reinforcing member 30 can be shared by using the same member, and only one mold is required for injection molding, and further, an increase in manufacturing cost is suppressed. Is done.

  Further, a plurality of small holes 30d are formed at predetermined intervals in the horizontal plate portion 30a of the reinforcing member 30 of the first embodiment. For this reason, even if rainwater in the storage space 26 increases or decreases, air and rainwater are communicated in the vertical direction of the reinforcing member 30 through the small holes 30d.

  Accordingly, it is possible to reduce the possibility that air or rainwater pressure that generates buoyancy or the like is applied in the vertical direction of the horizontal plate portion 30a.

  15 to 17 show a reinforcing member 130 used in a rainwater outflow suppression facility according to Embodiment 2 of the present invention.

  The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

  First, in terms of configuration, in the reinforcing member 130 of the second embodiment, two pairs and four C-shaped steel members are formed along each side on the rear surface side peripheral portion of the reinforcing plate body 130a having a substantially square shape when viewed from above. 130b, 130b and 130c, 130c are fixed with their surfaces opened outward.

  Further, on the back side of the reinforcing plate main body 130a, the square pipe members 130d and 130e, 130e are arranged between the central portions of the opposing C-shaped steel members 130b, 130b and 130c, 130c so as to intersect at a substantially central portion. Are fixed so as to connect.

  Further, the reinforcing plate member main body 130a, the C-shaped steel members 130b and 130c, and the square pipe members 130d and 130e are subjected to corrosion and rust prevention treatment such as acrylic baking coating on the surface side.

  Next, the operation of the second embodiment will be described.

  The reinforcing member 130 of the rainwater outflow suppression facility according to the second embodiment configured as described above is placed directly above the filling member 27 located at the uppermost position.

  Other configurations and operational effects are substantially the same as those of the first embodiment, and thus the description thereof is omitted.

  18 and 19 show a reinforcing member 230 used in a rainwater outflow suppression facility according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected and demonstrated about the same thru | or equivalent part as the said Examples 1 and 2.

  First, in terms of configuration, the reinforcing member 230 used in the rainwater outflow suppression facility of the third embodiment is made of reinforced concrete, and has a plurality of reinforcing bar members arranged so as to intersect at regular intervals in the vertical and horizontal directions. 230a... Is mainly configured by covering a substantially entire surface with a reinforced concrete plate member 230b formed by filling and hardening with precast concrete.

  Further, at the four corners on the back side of the reinforced concrete plate 230b, there are formed substantially right-angled isosceles triangular connecting portions 230c for fitting the upper fitting portions 38a of the upper connecting members 38, respectively. Has been.

  Next, the effect | action of the rainwater outflow suppression facility of this Example 3 is demonstrated.

  The reinforcing member 230 of the rainwater outflow suppression facility of the third embodiment is placed directly above the filling member 27 located at the uppermost position.

  At this time, the connecting portions 230c and 230c that are recessed on the back surface side of the reinforcing member 230 are fitted into the fitting portions 38a and 38a of the upper connecting members 38 that are interposed between the filling member 27 and the filling member 27, respectively. Put on.

  In Example 3, the reinforced concrete plate 230b of the reinforcing member 230 is made of precast concrete, so there is no need for curing on the construction site, construction time can be shortened, and workability is also good. is there.

  Further, by setting reinforced concrete by in-situ casting, these reinforcing members 230 can be integrated on the entire surface of the rainwater outflow control facility or in several areas.

  In this case, the bending of the reinforcing member 230 and the ground surface can be further suppressed.

  Other configurations and operational effects are substantially the same as those in the first or second embodiment, and thus the description thereof is omitted.

  The embodiment of the present invention and Examples 1 to 3 have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and is not deviated from the gist of the present invention. Design changes are included in the present invention.

  That is, in the embodiment, in the rainwater outflow suppression facility 20 of the embodiment, the filling member 27 is made of a synthetic resin material such as polypropylene. It may be made of a synthetic resin material such as vinyl or polyethylene terephthalate.

  The reinforcing member 30 is made of a synthetic resin material such as polypropylene. However, the present invention is not limited to this. For example, the reinforcing member 30 may be made of a synthetic resin material such as polyethylene, vinyl chloride, or polyethylene terephthalate. The shape, quantity, and material are not particularly limited as long as they are individually placed on the filling members 27 corresponding to the filling members 27.

In the best mode of the present invention, in the rainwater outflow suppression facility of Example 1, the internal configuration of the storage part in which the filling member is continuously provided is described. The vertical position at the position along the line AA in FIG. FIG. It is a side view explaining the one part laminated structure in the rainwater outflow suppression facility which demonstrates the structure of the principal part in the rainwater outflow suppression facility of Example 1. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional exploded perspective view illustrating an overall configuration in a rainwater outflow suppression facility according to a first embodiment. It is a typical partial cross section perspective view explaining the various aspect in which the rainwater outflow suppression facility of Example 1 is used. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view illustrating a laminated structure of a filling member and a reinforcing member used in a rainwater outflow suppression facility of Example 1 and partially omitting the middle of the lamination. It is a perspective view explaining the structure of the upper surface side of a filling member in the rainwater outflow suppression facility of Example 1. FIG. It is a perspective view explaining the structure of the lower surface side of a filling member in the rainwater outflow suppression facility of Example 1. FIG. It is a perspective view of the connection member used for the rainwater outflow suppression facility of Example 1. It is a perspective view which shows the lower connection part of the connection member used for the rainwater outflow suppression facility of Example 1. FIG. It is a perspective view explaining the mode of the fitting between the connection members arrange | positioned adjacently in the rainwater outflow suppression facility of Example 1. FIG. It is a perspective view explaining the mode of fitting in the portion where four adjacently arranged connecting members were faced in the rainwater outflow suppression facility of Example 1. It is a top view of the reinforcing member used for the rainwater outflow suppression facility of Example 1. It is a side view of the reinforcement body which laminated | stacked and adhered two reinforcement members used for the rainwater outflow suppression facility of Example 1. FIG. In the rainwater outflow suppression facility of Example 1, it is a bottom view of a reinforcing member. It is a top view of the reinforcing member used for the rainwater outflow suppression facility of Example 2. It is a side view of the reinforcing member used for the rainwater outflow suppression facility of Example 2. It is a bottom view of the reinforcement member used for the rainwater outflow suppression facility of Example 2. It is a top view of the reinforcement member used for the rainwater outflow suppression facility of Example 3. It is a reinforcement member used for the rainwater outflow suppression facility of Example 3, and is sectional drawing in the position along the BB line in FIG. It is a perspective view explaining the structure of the filling member used for the rainwater outflow suppression facility of one prior art example. It is a longitudinal cross-sectional view of the site | part storage part explaining the whole structure in the rainwater outflow suppression facility of one prior art example. It is sectional drawing of the filling member which has a support | pillar element used for the rainwater outflow suppression facility of another prior art example.

DESCRIPTION OF SYMBOLS 1 Ground 2 Storage part 2a Bottom face part 3 Cover sheet | seat 20 Rainwater outflow suppression facility 26 Storage space 27 Filling member 30,130,230
Reinforcing member 50 Plate-like support member

Claims (3)

The reservoir portion of the ground for temporarily storing the rainwater, and continuously provided a filling member aspect and vertically, in rainwater outflow inhibition property of forming a storage space,
The filling member is a plate having a substantially square shape in plan view, and has connecting portions for stacking the filling members in the vertical direction at the four corners.
Of the filling members, directly above the uppermost filling member, individually corresponding to each filling member, a flat plate-like reinforcing member is placed,
The reinforcing member is made of a synthetic resin material, has the same shape as the filling member in a plan view, and is provided with connecting portions at the four corners of the back surface.
The reinforcing member and the filling member are connected via a connecting member having upper and lower fitting portions fitted into the connecting portion of the reinforcing member and the connecting portion of the filling member with a flange portion interposed therebetween,
A rainwater outflow suppression facility characterized in that an overload received by the reinforcing member from the ground surface is transmitted to four corners of the reinforcing member and the filling member . The reinforcing member is laminated two or more sheets, characterized in Rukoto used in claim 1 runoff suppression facility according. Said reinforcing member, and laid on the bottom of the reservoir, runoff inhibition of claim 1, wherein that you formed into the same shape as the plate-like support member for supporting the filling member from below Facilities.

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