JP2586819Y2 - Drainage material holder - Google Patents
Drainage material holderInfo
- Publication number
- JP2586819Y2 JP2586819Y2 JP1991097845U JP9784591U JP2586819Y2 JP 2586819 Y2 JP2586819 Y2 JP 2586819Y2 JP 1991097845 U JP1991097845 U JP 1991097845U JP 9784591 U JP9784591 U JP 9784591U JP 2586819 Y2 JP2586819 Y2 JP 2586819Y2
- Authority
- JP
- Japan
- Prior art keywords
- drainage
- drainage material
- perforated plate
- water
- retaining wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Retaining Walls (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は、盛土やトンネルなどの
擁壁に沿って埋設される裏込め用排水材を定位置に保持
するための保持具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holder for holding a backfill drainage buried along a retaining wall such as an embankment or a tunnel in a fixed position.
【0002】[0002]
【従来の技術】図5に示すように、盛土Gに擁壁Wを施
工し、盛土G中の水分を排出するための水抜き孔Hを擁
壁Wの所定箇所に設け、擁壁Wの背面に面状の排水材A
を埋設するという工法は知られている。このように施工
された排水材Aは、盛土G中の水分を擁壁Wの背面に導
いた後、水抜き孔Hに排出する機能を有している。2. Description of the Related Art As shown in FIG. 5, a retaining wall W is constructed on an embankment G, and a drain hole H for discharging moisture in the embankment G is provided at a predetermined position of the retaining wall W. Planar drainage material A on the back
The construction method of burying is known. The drainage material A thus constructed has a function of guiding the water in the embankment G to the back surface of the retaining wall W and then discharging the water to the drain hole H.
【0003】一般的な排水材Aはその内部に所謂“水み
ち”として作用する空隙を有し、かつ周囲が布などの透
水シートで包囲されている。ところが、従来は排水材A
が振動などの荷重を受けてずれ落ちることがあり、その
ような事態を生じると、場合によっては上記空隙が狭く
なったり押し潰されてしまったりして円滑な排水がなさ
れなくなる心配がある。[0003] A general drainage material A has a void inside which acts as a so-called "water path", and is surrounded by a water-permeable sheet such as cloth. However, conventionally, drainage material A
In some cases, the air gap may slip due to a load such as vibration, and in such a case, the gap may be narrowed or crushed, and smooth drainage may not be performed.
【0004】また、子供の悪戯などで水抜き孔Hから棒
切れなどが差し込まれて透水シートが破れるといった事
態が起こると、透水シートの破れた箇所から内部の空隙
に土砂が侵入してその空隙を塞いでしまうといった事態
を生じることがある。そして、このように内部の空隙が
塞がれると、その空隙が水みちとしての機能を損ない、
円滑な排水がなされなくなる。[0004] In addition, when a broken sheet is inserted from the drain hole H due to mischief of a child or the like and the water-permeable sheet is torn, earth and sand enters the internal gap from the broken portion of the water-permeable sheet, and the gap is removed. A situation such as blocking may occur. And when the internal void is closed in this way, the void impairs the function as a water path,
Smooth drainage will not be achieved.
【0005】[0005]
【考案が解決しようとする課題】本考案は以上の事情で
なされたもので、擁壁に形成される水抜き孔を利用して
排水材を定位置に確実に位置決めすることができるのみ
ならず、水抜き孔に棒切れなどが差し込まれても排水材
の透水シートが破られることを未然に防止できる排水材
の保持具を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made under the circumstances described above, and not only can the drainage material be surely positioned at a fixed position by using a drain hole formed in a retaining wall. Another object of the present invention is to provide a drainage retainer that can prevent a water-permeable sheet of a drainage material from being broken even when a stick or the like is inserted into a drain hole.
【0006】[0006]
【課題を解決するための手段】本考案の排水材の保持具
は、有孔板と、この有孔板からその孔部を通して筒状に
突出され、擁壁に形成された水抜き孔の内面に弾接して
その水抜き孔に挿入保持される複数本の線材とを、備え
ていることを特徴とする。According to the present invention, there is provided a drainage retainer having a perforated plate and an inner surface of a drainage hole formed in a retaining wall and protruding from the perforated plate through the hole. And a plurality of wires that are resiliently contacted and inserted and held in the drain holes.
【0007】[0007]
【作用】この構成であると、排水材の背面に有孔板を配
置し、この有孔板から筒状に突出された複数本の線材を
擁壁の水抜き孔に挿入保持させ、かつそれらの線材で上
側の排水材と下側の排水材とを係止すると、線材を介し
て排水材が擁壁に位置決めされる。また、有孔板から筒
状に突出した複数本の線材に係止された上側の排水材と
下側の排水材との間に隙間が形成されるため、水抜き孔
から棒切れが差し込まれてもその棒切れが排水材に当た
らない。With this configuration, a perforated plate is arranged on the back of the drainage material, and a plurality of wires protruding from the perforated plate in a cylindrical shape are inserted and held in the drain holes of the retaining wall, and When the upper drainage material and the lower drainage material are locked by the wire, the drainage is positioned on the retaining wall via the wire. Also, since a gap is formed between the upper drainage material and the lower drainage material locked by a plurality of wires protruding from the perforated plate in a cylindrical shape, a rod is inserted through the drain hole. Even the stick does not hit the drainage material.
【0008】[0008]
【実施例】図1に本考案の実施例による保持具1を示し
てある。この保持具1は、曲げ剛性の大きな合成樹脂製
のネットでなる有孔板2の中央部から複数本の線材3…
を筒状に配列して突出したものである。上記線材3…は
ピアノ線などの曲がりにくくかつ弾性に優れた高抗張力
鋼線をU字状に曲げ、そのU字状の曲り部31を有孔板
2の孔部(網目)21に差し込んで有孔板2から突出さ
せたものであり、それぞれの線材3…はその先端部の近
傍箇所イでやゝ内向きに折り曲げられている。1 shows a holder 1 according to an embodiment of the present invention. The holder 1 includes a plurality of wires 3 from the center of a perforated plate 2 made of a synthetic resin net having high bending rigidity.
Are arranged in a cylindrical shape and projected. The wires 3 are formed by bending a high tensile strength steel wire, such as a piano wire, which is hard to bend and has excellent elasticity, into a U-shape, and inserts the U-shaped bent portion 31 into the hole (mesh) 21 of the perforated plate 2. The wires 3 project from the perforated plate 2, and each wire 3 is bent inward slightly at a point a near the tip thereof.
【0009】図2は、本考案の保持具1を使用して裏込
めした排水材20を擁壁Wに保持した状態を示す断面図
である。図2において、保持具1の複数本の線材3…は
それら自身の弾性に抗して束ねて水抜き孔Hに挿入さ
れ、それら自身の弾性復元力で水抜き孔Hの内面に弾接
する。擁壁Wと有孔板2との間には、面状の排水材20
がその下端面が線材3…に係止され、その上端面が線材
3…に突き当たるように配設され、有孔板2と線材3…
の弾接力によって、排水材20は擁壁Wの裏面に保持さ
れている。FIG. 2 is a cross-sectional view showing a state in which the drainage material 20 backed using the holder 1 of the present invention is held on the retaining wall W. In FIG. 2, a plurality of wires 3 of the holder 1 are bundled against the elasticity of themselves and inserted into the drainage hole H, and elastically contact the inner surface of the drainage hole H by their own elastic restoring force. A planar drainage material 20 is provided between the retaining wall W and the perforated plate 2.
Are arranged such that the lower end surface thereof is engaged with the wire 3 and the upper end surface thereof abuts on the wire 3..., The perforated plate 2 and the wire 3.
, The drainage material 20 is held on the back surface of the retaining wall W.
【0010】この構成であると、線材3…のところで間
隔を隔てて積み上げられた各排水材20…は、線材3…
の上に載架された状態になっているので、各排水材20
…がずれ落ちる心配がない。その上、水抜き孔Hから差
し込まれた棒切れが擁壁Wを突き抜けたとしても、棒切
れが達する箇所は上側の排水材20の下端面と下側の排
水材20の上端面との間の間隙となっている箇所である
から、その棒切れで排水材20,20の透水シートが破
られるといった懸念はない。したがって、排水材20の
内部空隙がずれ落ちにより狭くなったり塞がれたり、あ
るいは悪戯などで排水材20,20の透水シートが破ら
れたために土砂がその空隙を塞いだりして円滑の排水が
損なわれるといった事態は生じない。このため、上側の
排水材20の内部に浸入した盛土G中の水分は、その排
水材20の内部の空隙を“水みち”として円滑に流れ、
一部の水が水抜き孔Hを経て法面に流出し、残りの水が
下側の排水材20に入る。With this configuration, the drainage members 20 stacked at the wire members 3 at intervals are separated from the wire members 3.
Each drainage material 20 is placed on the
… There is no worry about falling off. In addition, even if the rods inserted from the drain holes H penetrate the retaining wall W, the rods reach the gap between the lower end surface of the upper drainage member 20 and the upper end surface of the lower drainage member 20. Therefore, there is no concern that the water-permeable sheet of the drainage material 20, 20 will be broken by the broken rod. Therefore, the internal gap of the drainage material 20 is narrowed or blocked by slippage, or the permeation sheet of the drainage material 20, 20 is broken due to mischief or the like, and the soil and the like block the gap, so that smooth drainage is performed. There is no such thing as being damaged. For this reason, the water in the embankment G that has penetrated into the upper drainage material 20 flows smoothly through the gap inside the drainage material 20 as “water path”,
Part of the water flows out to the slope through the drain hole H, and the remaining water enters the lower drainage material 20.
【0011】図2に示したように、線材3…を水抜き孔
Hに挿入したときに線材3…の先端部が交差状に収束す
るようにしておけば、線材3…の収束によって水抜き孔
Hが塞がれるため、水抜き孔Hから棒切れが差し込まれ
たときにはその棒切れが線材3…の収束部ロに当たって
それ以上は差し込むことができなくなる。したがって、
棒切れで排水材20,20の透水シートが破られるのを
いっそう確実に防止することができる。As shown in FIG. 2, if the distal ends of the wires 3 are converged in an intersecting shape when the wires 3 are inserted into the drain holes H, the water is drained by the convergence of the wires 3. Since the hole H is closed, when a rod piece is inserted from the drain hole H, the rod piece hits the converging portion b of the wire rod 3 and cannot be further inserted. Therefore,
It is possible to more reliably prevent the water-permeable sheet of the drainage materials 20 and 20 from being broken by the stick being cut.
【0012】ところで、面状の排水材20として図4に
示したものがある。このものは、高密度ポリエチレン樹
脂を加圧成形することにより製作されるものであって、
その両面側に突出する格子配列の多数の突起21…を備
えており、それらの突起21…の相互間の空隙が“水み
ち”として役立つ。そして、多数の突起21…を備えた
高密度ポリエチレン樹脂板をポリプロピレン樹脂でなる
不織布で作った透水シート22で包囲したものである。
このような排水材20、すなわち排水材20の本体部分
に突起21…を備える排水材20に対しては、図3に示
した保持具1を好適に用い得る。FIG. 4 shows an example of a planar drainage material 20. This is manufactured by pressure molding high density polyethylene resin,
A large number of projections 21 in a lattice arrangement projecting from both sides thereof are provided, and a gap between the projections 21 serves as a "water path". A high-density polyethylene resin plate having a large number of projections 21 is surrounded by a water-permeable sheet 22 made of a nonwoven fabric made of polypropylene resin.
The holder 1 shown in FIG. 3 can be suitably used for such a drainage member 20, that is, the drainage member 20 having the protrusions 21 on the main body of the drainage member 20.
【0013】図3の保持具1は、一対の枠板4,5を連
結部6を介して相対向状に互いに連結し、片側の枠板4
の中央に有孔板2を一体に具備させると共に、この有孔
板2から複数本の線材3…を筒状に配列した突出させた
ものである。この保持具1において、一対の枠板4,5
の対向間隔は図4で説明した面状の排水材20の厚みに
相応する間隔、すなわち排水材20の厚み寸法とほぼ同
じ寸法の間隔になっている。また、片側の枠板4に、内
方に突出する背高の主突起12,12と背低の補助突起
13,13とを設けてある。この保持具1の一対の枠板
4,5の間に上方と下方から図4で説明した面状の排水
材20,20を挿入すると、上側の排水材20について
はその下端面が上側の主突起12に係止されると共に、
突起21,21相互間の凹所に補助突起13が嵌まり込
んで確実な位置決めがなされる。下側の排水材20につ
いても同様の状態になり、下側の排水材20が吊り下が
った状態で確実に位置決めされる。その他の事項は図1
と図2で説明したところと同様である。The holder 1 shown in FIG. 3 connects a pair of frame plates 4 and 5 to each other via a connecting portion 6 so as to face each other.
Are provided integrally with a perforated plate 2 at the center thereof, and a plurality of wires 3 are projected from the perforated plate 2 in a cylindrical arrangement. In this holder 1, a pair of frame plates 4, 5
Is a distance corresponding to the thickness of the planar drainage member 20 described with reference to FIG. 4, that is, a distance substantially equal to the thickness dimension of the drainage member 20. The frame plate 4 on one side is provided with tall main projections 12 and 12 and inwardly protruding auxiliary projections 13 and 13 protruding inward. When the planar drainage members 20, 20 described with reference to FIG. 4 are inserted between the pair of frame plates 4, 5 of the holder 1 from above and below, the lower end surface of the upper drainage member 20 is the upper main drainage member. While being locked to the projection 12,
The auxiliary projection 13 fits into the recess between the projections 21 and 21 to ensure reliable positioning. The same applies to the lower drainage member 20, and the lower drainage member 20 is reliably positioned in a suspended state. Figure 1 for other items
Is the same as that described in FIG.
【0014】[0014]
【考案の効果】本考案によると、排水材が擁壁に確実に
位置決めされ、施工後の排水材のずれ落ちが生じにくく
なって長期に亘って円滑な排水がなされる。また、子供
の悪戯などで排水材の透水シートが破られる心配がない
ので、土砂で排水材の“水みち”が塞がれるといった事
態も生じない。According to the present invention, the drainage material is reliably positioned on the retaining wall, and the drainage material after construction is less likely to slip off, so that drainage can be performed smoothly for a long time. Further, since there is no fear that the water-permeable sheet of the drainage material is broken due to children's mischief or the like, a situation in which the “water path” of the drainage material is blocked by earth and sand does not occur.
【図1】本考案の実施例による保持具の斜視図である。FIG. 1 is a perspective view of a holder according to an embodiment of the present invention.
【図2】図1の保持具の使用状態を示す要部の断面図で
ある。FIG. 2 is a sectional view of a main part showing a use state of the holder of FIG. 1;
【図3】本考案の他の実施例による保持具の使用状態を
示す要部の断面図である。FIG. 3 is a sectional view of a main part showing a use state of a holder according to another embodiment of the present invention.
【図4】排水材を例示した部分概略斜視図である。FIG. 4 is a partial schematic perspective view illustrating a drainage material.
【図5】排水材の一般的な使用態様を説明するための断
面図である。FIG. 5 is a cross-sectional view for explaining a general usage mode of a drainage material.
1 保持具 2 有孔板 3 線材 H 水抜き孔 DESCRIPTION OF SYMBOLS 1 Holder 2 Perforated plate 3 Wire rod H Drainage hole
Claims (1)
して筒状に突出され、擁壁に形成された水抜き孔の内面
に弾接してその水抜き孔に挿入保持される複数本の線材
とを、備えていることを特徴とする排水材の保持具。1. A perforated plate, and a plurality of perforated plates protruding in a cylindrical shape from the perforated plate through the holes, elastically contacting an inner surface of a drain hole formed in a retaining wall, and being inserted and held in the drain hole. A retainer for a drainage material, comprising: a wire;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991097845U JP2586819Y2 (en) | 1991-10-31 | 1991-10-31 | Drainage material holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991097845U JP2586819Y2 (en) | 1991-10-31 | 1991-10-31 | Drainage material holder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0540339U JPH0540339U (en) | 1993-06-01 |
JP2586819Y2 true JP2586819Y2 (en) | 1998-12-14 |
Family
ID=14203067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991097845U Expired - Fee Related JP2586819Y2 (en) | 1991-10-31 | 1991-10-31 | Drainage material holder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2586819Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4511236Y1 (en) * | 1965-01-04 | 1970-05-20 |
-
1991
- 1991-10-31 JP JP1991097845U patent/JP2586819Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0540339U (en) | 1993-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |