JP5298287B2 - Crushed stone support plate and seepage drainage system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ballast support plate capable of preventing a rock fall when performing piping at the lower part of infiltration type drainage equipment by manual digging-down, and the infiltration type drainage equipment using the same. <P>SOLUTION: The ballast support plate includes: a first plate 6 comprising a first floor plate part 6a which has a drain hole and supports ballast 4 arranged under an infiltration type gutter block 2 by an upper surface, and a first sidewall part 6b which is erected on one end side of the first floor plate part 6a and supports the ballast 4 by a side face; and a second plate 7 comprising a second floor plate part 7a which is arranged on the lower surface on one end side opposite to the one end side where the first sidewall part 6b of the first floor plate part 6a of the first plate 6 is erected, and a second sidewall part 7b which is erected on one end side of the second floor plate part 7a opposite to the one end side where the first sidewall part 6b of the first floor plate 6a of the first plate 6 is erected and supports the ballast 4 by the side face. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to a crushed stone support plate that supports crushed stones disposed under a permeation-type side groove and a permeation-type drainage facility using the same.

  For example, permeation type drainage facilities as described in Patent Documents 1 to 3 are known. The seepage drainage system has a structure that allows rainwater to return to the ground from the water permeable part on the bottom of the osmotic side gutter block and the side of the sidewalk, and there is crushed stone on the side where the underground water permeable part is placed. The permeable sheet is arrange | positioned so that a crushed stone may not flow into the lower surface and side surface of a crushed stone. In such an osmotic drainage, the water discharged to the outside through the water permeable portion of the gutter block passes through the crushed stone portion and is osmotically reduced into the ground through the water permeable sheet.

JP 2006-112188 A Japanese Patent Laid-Open No. 2007-32048 JP 2007-177414 A

  By the way, in the conventional osmotic drainage system, there is no problem as long as the gutter block and the crushed stone part are buried, but when a store or a house is newly built on the roadside land, this osmotic drainage system A water pipe or a gas pipe may be installed below the ground. At this time, the lower side of the permeation type drainage facility is dug without a supporting work (so-called digging), and the pipe is passed through, but the crushed stone falls due to the digging.

  When such a falling floor occurs, it becomes a cause that the gutter block or the road sinks. Moreover, once it falls, it is difficult to restore the structure having the original crushed stone part, and even if the soil is buried, sufficient compaction cannot be performed.

  Accordingly, an object of the present invention is to provide a crushed stone support plate capable of preventing a falling plate when piping by digging below an osmotic drainage facility, and an osmotic drainage facility using the same. .

  The crushed stone support plate of the present invention has a drainage hole, and has a floor plate portion that supports the crushed stone disposed below the side groove on the upper surface, and a side wall portion that stands on the floor plate portion and supports the crushed stone on the side surface. It is. According to the crushed stone support plate of the present invention, the permeable sheet is disposed on the crushed stone support plate, the crushed stone is disposed on the permeable sheet, and the osmotic side groove is disposed on the crushed stone. Since the equipment is configured and the bottom and side surfaces of the crushed stone are supported by the crushed stone support plate, the falling of the rocks when digging below the permeation type drainage equipment is prevented.

  Although the crushed stone support plate of the present invention can be integrated, the crushed stone support plate of the present invention has a drain hole and a first floor plate portion that supports the crushed stone disposed under the side groove on the upper surface. The first plate comprising a first side wall portion standing on one end side of the first floor plate portion and supporting the crushed stone on the side surface, and the first side wall portion of the first floor plate portion of the first plate were erected. A second floor plate portion disposed on a lower surface on one end side opposite to the one end side, and one end side on which the first side wall portion of the first floor plate portion of the first plate of the second floor plate portion is erected; It is desirable to be constituted by a second plate that is erected on one end side of the opposite side and that includes a second side wall portion that supports the crushed stone on the side surface.

  Thereby, after arrange | positioning a 2nd plate, the 1st floor board part is arrange | positioned on the 2nd floor board part of a 2nd plate, a 1st plate is arrange | positioned, and a 1st floor board part is arrange | positioned by arrange | positioning a crushed stone. The second floor plate portion of the second plate is pressed by the weight of the crushed stone disposed above, and the tilt of the second side wall portion of the second plate is prevented. Moreover, since the first plate and the second plate are members each having a substantially L-shaped cross section, molding and transportation are facilitated.

  Moreover, the crushed stone support plate of this invention has a drain hole, the 1st plate which comprises the 1st floor board part which supports the crushed stone arrange | positioned under a side groove on an upper surface, and the lower surface of the one end side side of a 1st plate A second plate composed of a second floor plate portion disposed on one end side of the second floor plate portion and a first side wall portion that supports the crushed stone on the side surface, and a second plate of the first plate. Standing on one end side opposite to the one end side on which the third floor plate portion disposed on the lower surface on the one end side opposite to the one end side and the second plate of the third floor plate portion is disposed. It can also be comprised from the 3rd plate which is provided and consists of the 2nd side wall part which supports a crushed stone by a side surface.

  Thus, after the second plate and the third plate are disposed, the first plate is disposed by overlapping the first floor plate portion on the second floor plate portion of the second plate and the third floor plate portion of the third plate. By arranging the crushed stone, the second floor plate portion of the second plate and the third floor plate portion of the third plate are pressed by the weight of the crushed stone arranged on the first floor plate portion, and the second plate of the second plate is pressed. Inclination of the first side wall and the second side wall of the third plate is prevented. In addition, the first plate is a flat plate member, and the second plate and the third plate are members each having a substantially L-shaped cross section, which facilitates molding and transportation.

(1) According to the crushed stone support plate which has a drain plate and has a floor plate portion which supports the crushed stone disposed under the side groove on the upper surface and a side wall portion which is erected on the floor plate portion and supports the crushed stone on the side surface. Since the bottom surface and the side surface of the crushed stone of the osmotic drainage facility are supported by the crushed stone support plate, it is possible to prevent a falling plate when digging below the osmotic drainage facility.

(2) A first floor plate portion that has drain holes and supports the crushed stone disposed under the side groove on the upper surface, and a first side wall that is erected on one end side of the first floor plate portion and supports the crushed stone on the side surface A first plate comprising a portion, and a second floor plate portion disposed on the lower surface on one end side opposite to the one end side on which the first side wall portion of the first floor plate portion of the first plate is erected, A second side wall portion which is erected on one end side opposite to the one end side where the first side wall portion of the first floor plate portion of the first plate of the second floor plate portion is erected, and supports the crushed stone on the side surface; According to the crushed stone support plate comprised from the 2nd plate which consists of, shaping | molding and conveyance become easy, can provide a low-cost and easy handling crushed stone support plate.

(3) A first floor plate having a drain hole and constituting a first floor plate portion that supports the crushed stone disposed under the side groove on the upper surface, and a second floor plate disposed on the lower surface on one end side of the first plate. A second plate comprising a first side wall portion standing on one end side of the second floor plate portion and supporting the crushed stone on the side surface, and one end side on which the second plate of the first plate is disposed The third floor plate portion disposed on the lower surface on the opposite one end side and the one end side opposite to the one end side on which the second plate of the third floor plate portion is disposed are erected on the side surface. According to the crushed stone support plate comprised from the 3rd plate which consists of the 2nd side wall part to support, shaping | molding and conveyance become easy, can provide a low-cost and easy handling crushed stone support plate.

(A) is sectional drawing of the osmosis | permeation type drainage equipment in embodiment of this invention, (b) is AA sectional drawing of (a). It is a figure which shows the 1st plate of the crushed stone support plate of FIG. 1, (a) is a front view, (b) is a top view, (c) is a left view. It is a figure which shows the 2nd plate of the crushed stone support plate of FIG. 1, Comprising: (a) is a front view, (b) is a right view. It is sectional drawing which shows another embodiment of a crushed stone support plate. It is sectional drawing which shows another embodiment of the penetration type drainage equipment of this invention.

  1A is a cross-sectional view of an osmotic drainage system according to an embodiment of the present invention, FIG. 1B is a cross-sectional view taken along line AA of FIG. 1A, and FIG. 2 is a first plate of a crushed stone support plate of FIG. (A) is a front view, (b) is a plan view, (c) is a left side view, and FIG. 3 is a view showing a second plate of the crushed stone support plate of FIG. ) Is a front view, and (b) is a right side view.

  In FIG. 1, an osmotic drainage facility 1 according to an embodiment of the present invention has an osmotic side groove block 2 as a side groove constituting a box, embedded in the ground on the side of a road. The permeation type side groove block 2 includes a side groove main body 2a, a precast foundation plate 2b, an invert concrete 2c, and a concrete lid 2d. . A crushed stone 4 is disposed below the precast base plate 2b and in the infiltration port 3.

  In the permeation type drainage facility 1, a substantially concave crushed stone support plate 5 that supports the crushed stone 4 is provided, and the crushed stone 4 is provided on the substantially concave crushed stone support plate 5. The crushed stone plate 5 includes a first plate 6 shown in FIG. 2 and a second plate 7 shown in FIG. A water-permeable sheet 8 is disposed between the crushed stone 4 and the crushed stone support plate 5.

  As shown in FIG. 2, the first plate 6 is a member formed in an approximately L shape by FRP (fiber reinforced plastic), and includes a rectangular first floor plate portion 6a and a first side wall portion 6b. A plurality of drain holes 6c made of long holes are formed in the first floor plate portion 6a. Moreover, the 1st side wall part 6b is standingly arranged by the one end side of the 1st floor board part 6a.

  As shown in FIG. 3, the second plate 7 is a member formed in an approximately L shape by FRP (fiber reinforced plastic), and includes a rectangular second floor plate portion 7 a and a second side wall portion 7 b. The second side wall portion 7b is erected on one end side of the second floor plate portion 7a.

  The construction of the osmotic drainage 1 having the above-described configuration is as follows. First, the second plate 7 is disposed in the excavated ground, and the first floor plate portion 6a is overlapped on the second floor plate portion 7a of the second plate 7. One plate 6 is disposed. As a result, the second floor plate portion 7a has one end side opposite to the one end side (right side in FIG. 1A) where the first side wall portion 6b of the first floor plate portion 6a of the first plate 6 is erected. 1st side wall part 6b of the 1st floor board part 6a of the 1st plate 6 of the 2nd floor board part 7 was standingly arranged by the lower surface of the side (left side of FIG. 1 (a)), and the 2nd side wall part 7b. It is in a state of being erected on one end side (the left side in FIG. 1B) opposite to the one end side (the right side in FIG. 1A).

  And the water-permeable sheet 8 is laid in the inner surface of the recessed part 6a formed of the 1st plate 6 and the 2nd plate 7, and the crushed stone 4 is arrange | positioned. Thereby, the crushed stone 4 is supported by the upper surface of the first floor plate portion 6 a of the first plate 6 and the side surface of the first side wall portion 6 b and the side surface of the second side wall portion 7 b of the second plate 7. At this time, since the second floor plate portion 7a of the second plate 7 is pressed by the weight of the crushed stone 4 disposed on the first floor plate portion 6a of the first plate 6, the second side wall of the second plate 7 is pressed. The tilting of the part 7b is prevented.

  Then, the precast base plate 2b is laid on the crushed stone 4, and the gutter body 2a is laid. Next, a formwork (not shown) is installed in accordance with the position of the permeation port 3 of the precast base plate 2b, and the invert concrete 2c is formed from ready-mixed concrete. Then, the crushed stone 4 is arrange | positioned in the infiltration port 3 formed in the precast foundation slab 2b and the invert concrete 2c, and the concrete cover 2d is installed.

  In the osmotic drainage 1 having the above-described configuration, the crushed stone 4 is supported by the crushed stone support plate 5 including the first plate 6 and the second plate 7. Even if the side hole 10 is dug, it does not fall.

  Moreover, since the 1st plate 6 and the 2nd plate 7 are the members of a substantially L-shaped cross section, respectively, shaping | molding and conveyance are easy, and the crushed stone support plate 5 comprised by these is low-cost and easy to handle. is there. In the present embodiment, the crushed stone support plate 5 is a two-split type composed of the first plate 6 and the second plate 7, but can also be an integral type.

  Alternatively, as shown in FIG. 4, a three-part crushed stone support plate 14 including a first plate 11, a second plate 12, and a third plate 13 can be used. The first plate 11 is an FRP rectangular plate material that constitutes the first floor plate portion 11a. The second plate 12 and the third plate 13 are the same members as the second plate 7 described above, and the second floor plate portion 12a and the first side wall portion 12b, the third floor plate portion 13a and the second side wall portion 13b, respectively. Have

  Even in such a configuration, after the second plate 12 and the third plate 13 are disposed, the first floor plate is placed on the second floor plate portion 12a of the second plate 12 and the third floor plate portion 13a of the third plate 13. The first plate 11 is disposed by overlapping the portions 11a, and the crushed stone 4 (see FIG. 1) is disposed, whereby the weight of the crushed stone 4 disposed on the first floor plate portion 11a is increased. The second floor plate portion 12a and the third floor plate portion 13a of the third plate 13 are pressed, and the first side wall portion 12b of the second plate 12 and the second side wall portion 13b of the third plate 13 are prevented from being tilted.

  In this configuration, the first plate 11 is a flat plate member, and the second plate 12 and the third plate 13 are members each having a substantially L-shaped cross section. Like the crushed stone support plate 5, the crushed stone support plate 14 comprised by these is low-cost and easy to handle.

  Next, another embodiment of the osmotic drainage of the present invention will be described. FIG. 5 is a sectional view showing another embodiment of the osmotic drainage system of the present invention. The osmotic drainage 20 shown in FIG. 5 has an osmotic side gutter block 21 as a side gutter constituting the box, embedded in the ground on the side of the road. The permeation-type side groove block 21 is partially provided with water-permeable holes 22 in the side wall portion 21a and the bottom plate portion 21b on the private side.

  In this case, the crushed stone 4 is arranged on the side wall portion 21a and the bottom plate portion 21b side where the water permeable holes 22 are provided, and the crushed stone plate 5 supports the crushed stone 4 arranged on the side wall portion 21a and the bottom plate portion 21b side. It is provided as follows. Even in such a configuration, since the crushed stone 4 is supported by the crushed stone support plate 5 as described above, even if the horizontal hole 10 for the pipe 9 is dug below the permeation type drainage facility 20, the crushed stone falls. Never do.

  The crushed stone support plate of the present invention is useful for osmotic drainage equipment that can osmose and reduce drainage into the ground, and in particular, the crushed stone support plate of the present invention is used when piping by digging below the osmotic drainage equipment. It is suitable as a device capable of preventing a falling plate.

DESCRIPTION OF SYMBOLS 1,20 Penetration type drainage equipment 2,21 Penetration type side groove block 4 Crushed stone 5 Crushed stone plate 6 1st plate 6a 1st floor board part 6b 1st side wall part 7 2nd plate 7a 2nd floor board part 7b 2nd side wall part 8 Permeable sheet DESCRIPTION OF SYMBOLS 9 Piping 10 Horizontal hole 11 1st plate 11a 1st floor board part 12 2nd plate 12a 2nd floor board part 12b 1st side wall part 13 3rd plate 13a 3rd floor board part 13b 2nd side wall part 22 Water-permeable hole

Claims (4)

A floor plate portion having a drainage hole and supporting a crushed stone disposed under the base plate or bottom plate portion of the side groove on the upper surface;
A crushed stone support plate that has a side wall portion that is erected on the floor plate portion and supports the crushed stone on a side surface.
A first floor plate portion having a drain hole and supporting a crushed stone disposed under the side groove on the upper surface, and a first side wall portion standing on one end side of the first floor plate portion and supporting the crushed stone on the side surface A first plate comprising:
A second floor plate portion disposed on a lower surface on one end side opposite to the one end side on which the first side wall portion of the first floor portion of the first plate is erected; and From the second side wall portion that is erected on one end side opposite to the one end side on which the first side wall portion of the first floor plate portion of the first plate is erected and supports the crushed stone on the side surface A crushed stone support plate composed of the second plate. A first plate having a drain hole and constituting a first floor plate portion that supports a crushed stone disposed under the side groove on the upper surface;
A second floor plate portion disposed on a lower surface on one end side of the first plate, and a second side wall portion standing on one end side of the second floor plate portion and supporting the crushed stone on a side surface. Plates,
A third floor plate portion disposed on the lower surface of one end side opposite to the one end side where the second plate of the first plate is disposed, and the second plate of the third floor plate portion are disposed. A crushed stone support plate comprising a third plate standing on one end side opposite to the one end side and comprising a second side wall for supporting the crushed stone on the side surface. A crushed stone support plate according to any one of claims 1 to 3,
A water permeable sheet disposed on the crushed stone support plate;
Crushed stones disposed on the water-permeable sheet;
An osmotic drainage device comprising an osmotic side groove disposed on the crushed stone.

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