JPH0349194Y2 - - Google Patents
Info
- Publication number
- JPH0349194Y2 JPH0349194Y2 JP2663886U JP2663886U JPH0349194Y2 JP H0349194 Y2 JPH0349194 Y2 JP H0349194Y2 JP 2663886 U JP2663886 U JP 2663886U JP 2663886 U JP2663886 U JP 2663886U JP H0349194 Y2 JPH0349194 Y2 JP H0349194Y2
- Authority
- JP
- Japan
- Prior art keywords
- water stop
- shaft
- stop device
- filled
- filling liquid
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011111 cardboard Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は小口径管の地中推進において立坑の坑
口防護に用いられる止水装置に関するものであ
る。[Detailed description of the invention] Industrial application field The present invention relates to a water stop device used to protect the entrance of a shaft in underground propulsion of small diameter pipes.
従来の技術
小口径管の地中推進において土質が砂層で地下
水が豊富な地盤には坑口防護のために止水装置を
設置している。Conventional technology In underground propulsion of small-diameter pipes, a water stop device is installed to protect the tunnel entrance in ground where the soil is sandy and has abundant groundwater.
従来のこの種の止水装置は第６図乃至第８図に
示すに鉄板ａとゴム板ｂとを交互に重ね合わせて
これらをボルトｃにより矢板ｄ側の基板ｅに締結
して構成されていた。 A conventional water stop device of this kind is constructed by stacking iron plates a and rubber plates b alternately and fastening them to a base plate e on the sheet pile d side with bolts c, as shown in Figs. 6 to 8. Ta.
考案が解決しようとする問題点
しかし、従来の止水装置においてはゴム板ｂと
推進管ｆとの間の隙間より水、土砂等が立坑内に
流出し地盤の陥没を引きおこす要因になつてい
た。Problems that the invention aims to solve: However, in the conventional water stop device, water, dirt, etc. flowed into the shaft from the gap between the rubber plate b and the propulsion pipe f, causing the ground to sink. .
また、従来の止水装置は製作費、取付費も高
く、重量的に重く据付、取外しにクレーンを必要
としていた。 In addition, conventional water stop devices are expensive to manufacture and install, and are heavy and require a crane to install and remove.
本考案は上記の事情に鑑みなされたもので、立
坑の坑口における推進管推進時の止水効果が大で
しかも製作費が安価で重量も軽い止水装置を提供
することを目的とする。 The present invention was developed in view of the above circumstances, and it is an object of the present invention to provide a water stop device that has a large water stop effect during propulsion of a propulsion pipe at the entrance of a shaft, is inexpensive to manufacture, and is light in weight.
問題点を解決するための手段及び作用
上記の目的を達成するために、本考案は、立坑
の坑口に装着される止水部材１２を、強化段ボー
ル８を重ね合せてこれらの強化段ボール８間に空
隙部１０を形成しこれら空隙部１０に、充填後固
化して膨張性、弾力性及び水密性を有する充填液
を構成してある。Means and Effects for Solving the Problems In order to achieve the above object, the present invention provides a waterproof member 12 to be installed at the entrance of a shaft by stacking reinforced corrugated cardboards 8 on top of each other and placing the reinforced corrugated cardboards 8 between the reinforced corrugated cardboards 8. Cavities 10 are formed, and a filling liquid that solidifies after being filled into these cavities 10 has expandability, elasticity, and watertightness.
実施例
以下、本考案の実施例を第１図乃至第５図を参
照して説明する。第１図において１は鋼矢板２に
より壁面部が形成された立坑であり、立坑１の左
右側壁部３，４には坑口５が形成してあり、坑口
５には枠状の基板６が設けてあり、この基板６に
止水装置７が取付けてある。Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5. In FIG. 1, reference numeral 1 denotes a shaft whose wall surface is formed of steel sheet piles 2. A shaft 5 is formed in the left and right side walls 3 and 4 of the shaft 1, and a frame-shaped base plate 6 is provided at the shaft 1. A water stop device 7 is attached to this board 6.
この止水装置７は、強化段ボール８をスペーサを
介して重ね合せてこれら強化段ボール８間の空隙
部１０に充填液（例えば、高強度疎水ウレタン系
薬液、無臭型親水性ウレタン樹脂等）を充填して
固化させて成る止水部材１にを備えており、この
止水部材１２を基板６に合わせて切断し、この切
断した止水部材１２をボルトのような固着手段で
基板６に固着して止水装置７が構成してある。ま
た、基板６と止水部材１２との間にも上記の充填
液が充填してある。This water stop device 7 consists of stacking reinforced cardboard boxes 8 via spacers, and filling a gap 10 between the reinforced cardboard boxes 8 with a filling liquid (for example, a high-strength hydrophobic urethane chemical, an odorless hydrophilic urethane resin, etc.). The water stop member 1 is cut to match the substrate 6, and the cut water stop member 12 is fixed to the substrate 6 with a fixing means such as a bolt. A water stop device 7 is configured. Further, the space between the substrate 6 and the water stop member 12 is also filled with the above-mentioned filling liquid.
このように構成された止水装置７において、前
記止水部材１２に推進管１３の外径寸法の孔１４
を穿ち、この孔１４から地中に推進管１３を推進
させる。 In the water stop device 7 configured in this manner, the water stop member 12 is provided with a hole 14 having the outer diameter of the propulsion pipe 13.
is drilled, and the propulsion pipe 13 is propelled into the ground through this hole 14.
前記充填液は膨張性、弾力性、水密性を有する
ために前記推進管１３と孔１４との間の隙間をな
くし、水、土砂等の立坑１内への流れ出しを阻止
する。 Since the filling liquid has expandability, elasticity, and watertightness, it eliminates the gap between the propulsion pipe 13 and the hole 14, and prevents water, earth, etc. from flowing into the shaft 1.
考案の効果
以上詳述したように、本考案に係る止水装置
は、立坑の坑口に装着される止水部材１２を、強
化段ボール８を重ね合わせてこれらの強化段ボー
ル８間に空隙部１０を形成しこれら空隙部１０
に、充填後固化して膨張性、弾力性及び水密性を
有する充填液を充填して構成したことを特徴とす
るものである。Effects of the Invention As detailed above, the water stop device according to the present invention includes a water stop member 12 to be attached to the entrance of a shaft by overlapping reinforcing cardboards 8 and creating a gap 10 between the reinforcing cardboards 8. These voids 10 are formed
The device is characterized in that it is filled with a filling liquid that solidifies after filling and has expandability, elasticity, and watertightness.
したがつて、止水部材１２は強化段ボール８と充
填液とで構成されており、充填液は充填後膨張
性、弾力性及び水密性を有するために、止水部材
１２と推進管との間より流出する水、土砂を阻止
しその止水効果を向上させることができるし、止
水部材１２はその製作費も安価で重量も軽く据付
け等にクレーンを使用することもない。Therefore, the water stop member 12 is composed of the reinforced cardboard 8 and the filling liquid, and since the filling liquid has expandability, elasticity, and watertightness after being filled, there is a gap between the water stop member 12 and the propulsion pipe. It is possible to prevent more water and earth from flowing out and improve the water-stopping effect, and the water-stopping member 12 is inexpensive to manufacture, light in weight, and does not require the use of a crane for installation.
第１図は立坑の平面図、第２図は本考案一実施
例の斜視図、第３図は同要部の斜視図、第４図は
第３図Ａ−Ａ線に沿う断面図、第５図は本考案一
実施例の側面図、第６図は従来の止水装置の斜視
図、第７図は同側面図、第８図は同分解斜視図で
ある。
８……強化段ボール、１０……空隙部。
Fig. 1 is a plan view of the shaft, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a perspective view of the main parts, Fig. 4 is a sectional view taken along line A-A in Fig. 3, 5 is a side view of an embodiment of the present invention, FIG. 6 is a perspective view of a conventional water stop device, FIG. 7 is a side view of the same, and FIG. 8 is an exploded perspective view of the same. 8...Reinforced cardboard, 10...Void portion.
Claims (1)
段ボール８を重ね合せてこれらの強化段ボール８
間に空隙部１０を形成しこれら空隙部１０に、充
填後固化して膨張性、弾力性及び水密性を有する
充填液を充填して構成したことを特徴とする止水
装置。 The water stop member 12 to be attached to the entrance of a shaft is made by overlapping reinforced cardboard 8 with these reinforced cardboards 8.
A water stop device characterized in that voids 10 are formed in between, and these voids 10 are filled with a filling liquid that solidifies after being filled and has expandability, elasticity, and watertightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2663886U JPH0349194Y2 (en) | 1986-02-27 | 1986-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2663886U JPH0349194Y2 (en) | 1986-02-27 | 1986-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62138798U JPS62138798U (en) | 1987-09-01 |
| JPH0349194Y2 true JPH0349194Y2 (en) | 1991-10-21 |
Family
ID=30827906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2663886U Expired JPH0349194Y2 (en) | 1986-02-27 | 1986-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349194Y2 (en) |
-
1986
- 1986-02-27 JP JP2663886U patent/JPH0349194Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62138798U (en) | 1987-09-01 |
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