JPH045093B2 - - Google Patents

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Publication number
JPH045093B2
JPH045093B2 JP61151496A JP15149686A JPH045093B2 JP H045093 B2 JPH045093 B2 JP H045093B2 JP 61151496 A JP61151496 A JP 61151496A JP 15149686 A JP15149686 A JP 15149686A JP H045093 B2 JPH045093 B2 JP H045093B2
Authority
JP
Japan
Prior art keywords
water
stop sheet
holes
sheet
stop
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 - Lifetime
Application number
JP61151496A
Other languages
Japanese (ja)
Other versions
JPS6311713A (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15149686A priority Critical patent/JPS6311713A/en
Publication of JPS6311713A publication Critical patent/JPS6311713A/en
Publication of JPH045093B2 publication Critical patent/JPH045093B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、止水性を有するシートを地中に埋設
して行う、簡易止水壁の施工方法に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for constructing a simple water-stopping wall by burying a sheet having water-stopping properties underground.

〈本発明の目的〉 (イ) 土砂の掘削量を低減できる、簡易止水壁の施
工方法。
<Objective of the present invention> (a) A method for constructing a simple water stop wall that can reduce the amount of earth and sand excavated.

(ロ) 施工費の削減を図ることができる、簡易止水
壁の施工方法。
(b) A simple method of constructing water-stop walls that can reduce construction costs.

(ハ) 継手部の止水性能が高い、簡易止水壁の施工
方法。
(c) A method for constructing a simple water-stop wall that has high water-stop performance at joints.

〈本発明の構成〉 以下、図面を参照しながら本発明の一実施例に
ついて説明する。
<Configuration of the Present Invention> An embodiment of the present invention will be described below with reference to the drawings.

(イ) 止水原理 本発明は、超高圧水(ウオータージエツト)
の破壊力を利用して、細幅の溝を掘削するとと
もに、開削したこの溝内に止水部材である止水
シートを埋設して止水壁を構築する止水壁の施
工技術である。
(a) Water stop principle The present invention is based on ultra-high pressure water (water jet)
This is a water cutoff wall construction technique in which a narrow trench is excavated using the destructive force of water, and a water cutoff sheet, which is a water cutoff member, is buried in the excavated trench to construct a water cutoff wall.

(ロ) 止水シート(第1図) 本発明に使用する止水材は、止水性および耐
蝕性に優れた薄手のシートであり、例えば防水
加工を施した不織布または樹脂製の可撓性を有
するシート等を使用できる。
(b) Water-stop sheet (Figure 1) The water-stop material used in the present invention is a thin sheet with excellent water-stop properties and corrosion resistance, such as a waterproof nonwoven fabric or a flexible resin sheet. You can use the sheet that you have.

(ハ) 開削手段(第1図) 開削手段としては、超高圧水の破壊エネルギ
ーを利用して掘削するウオータージエツト装置
を使用する。
(c) Excavation means (Figure 1) As the excavation means, a waterjet device will be used, which excavates using the destructive energy of ultra-high pressure water.

このウオータージエツト装置は水平運行する
先導柱2と、先導柱2に昇降自在に配備したノ
ズル3で構成する。
This waterjet device is composed of a horizontally movable leading column 2 and a nozzle 3 disposed on the leading column 2 so as to be movable up and down.

先導柱2としては剛性の鋼柱等を使用でき
る。
As the leading column 2, a rigid steel column or the like can be used.

また、ノズル3を昇降する手段としてはノズ
ル3に走行機能を持たせて遠隔で走行する操作
する等の方法を採用できる。
Further, as a means for raising and lowering the nozzle 3, a method such as providing the nozzle 3 with a traveling function and operating it remotely can be adopted.

また、先導柱2の背面側に2枚の板体からな
るストツパー4を拡開自在に取り付ける。
Further, a stopper 4 made of two plates is attached to the back side of the leading pillar 2 so as to be freely expandable.

このストツパー4は、2つの機能を有する部
材であつて、その1つは開削作業中に超高圧水
が開削した溝内に逆流することを防止する機能
を有し、もう1つは止水シート1を溝内に引き
出して後に到達した側の孔内で係止させるため
の係止部材として機能する。
This stopper 4 is a member that has two functions, one of which is to prevent ultra-high pressure water from flowing back into the excavated groove during excavation work, and the other is to serve as a water stopper. It functions as a locking member for pulling out 1 into the groove and locking it in the hole on the side reached later.

(ニ) 止水シートの引出し手段 本実施例では、止水シート1を溝内に位置さ
せる方法として、止水シート1の端を開削手段
に接続して、開削と並行して水平方向に引き出
す方法を採用する。
(d) Water-stop sheet pulling means In this embodiment, the method of positioning the water-stop sheet 1 in the groove is to connect the end of the water-stop sheet 1 to a cutting means and pull it out horizontally in parallel with the cutting. Adopt a method.

止水シート1を開削と並行して引き出すに
は、先導柱2の背面に止水シート1の自由端を
一体に接続しておくだけで良い。
In order to pull out the water stop sheet 1 in parallel with excavation, it is sufficient to connect the free end of the water stop sheet 1 integrally to the back surface of the leading pillar 2.

こうすることで先導柱2の水平運行時に、止
水シート1を連続して引き出すことができる。
By doing this, the water stop sheet 1 can be continuously pulled out when the leading pillar 2 moves horizontally.

(ホ) 施工方法 (1) 削孔(第2図) 止水予定の地盤5に、一定間隔毎に孔A,
B…を開孔する。
(E) Construction method (1) Drilling holes (Fig. 2) Drill holes A, 5 at regular intervals in the ground 5 where water is to be stopped.
B... is drilled.

なお、本実施例のように各孔A,B…の孔
壁崩壊の防止を目的として各孔A,B…内
に、コンクリートと塩ビ管の積層体からなる
擁壁6で保護する場合もある。
In addition, as in this embodiment, each hole A, B, etc. may be protected with a retaining wall 6 made of a laminate of concrete and PVC pipe for the purpose of preventing the wall of each hole A, B, etc. from collapsing. .

(2) 開削の準備 孔A内には、ロール状に巻きとつた止水シ
ート1を挿入する。
(2) Preparation for drilling Insert the water stop sheet 1 wound into a roll into the hole A.

このとき、止水シート1の自由端には、ノ
ズル3を昇降自在に取り付けた先導柱2も一
緒に孔A内に挿入する。
At this time, the guide post 2 to which the nozzle 3 is movably attached to the free end of the water stop sheet 1 is also inserted into the hole A.

(3) 開削作業と止水シートの引き出し 地上に配置した図示しない超高圧水の供給
装置の運転を開始してノズル3から超高圧水
を開削方向に向けて噴射する。
(3) Excavation work and drawing out of water stop sheet The operation of an ultra-high pressure water supply device (not shown) placed on the ground is started, and ultra-high pressure water is sprayed from the nozzle 3 in the excavation direction.

超高圧水の噴射開始と同時に孔A内のノズ
ル3を上下方向に昇降させる。
Simultaneously with the start of the injection of ultra-high pressure water, the nozzle 3 in the hole A is raised and lowered in the vertical direction.

その結果、孔A内の擁壁6の一部が破壊さ
れた後に地盤5をノズル3や先導柱2が通過
できる程度に細幅の溝51が開設される。
As a result, after a part of the retaining wall 6 in the hole A is destroyed, a narrow groove 51 is opened to the extent that the nozzle 3 and the leading pillar 2 can pass through the ground 5.

そして、先導柱2を孔B方向へ移動しなが
ら地盤5を順次開削して、溝51を延長して
いく。
Then, while moving the guide post 2 in the direction of the hole B, the ground 5 is sequentially excavated to extend the groove 51.

先導柱2の移動に伴い、先導柱2と一体の
止水シート1が溝51内に順次引き出され
る。
As the leading pillar 2 moves, the water stop sheet 1 integrated with the leading pillar 2 is sequentially pulled out into the groove 51.

以上の作業を続けながら孔Bに達するまで
止水シート1を引き出す。
While continuing the above operations, pull out the water stop sheet 1 until it reaches hole B.

(4) 止水シートの埋設(第3図) 止水シート1の自由端が孔Bまで達した
ら、ストツパー4を広げて孔Bに係止させ
る。
(4) Burying the water stop sheet (Figure 3) When the free end of the water stop sheet 1 reaches hole B, spread the stopper 4 and lock it in hole B.

次に先導柱2とノズル3を孔Bから引き上
げて撤去する。
Next, the leading column 2 and nozzle 3 are pulled up from the hole B and removed.

その結果、止水シート1は両孔A,B間に
張設されたことになる。
As a result, the water stop sheet 1 is stretched between both holes A and B.

次に、孔A,Bと溝51の境界部位に水膨
潤性ゴム等の止水材7を介在して、止水シー
ト1を挟持させて、孔A,Bと溝51間の止
水を図る。
Next, a water stop material 7 such as water-swellable rubber is interposed at the boundary between the holes A and B and the groove 51, and the water stop sheet 1 is sandwiched between the holes A and B and the groove 51 to stop water between the holes A and B and the groove 51. Plan.

(5) 溝の埋め戻し(第3,5図) 止水シート1が設置された溝51内には、
例えば、深層部の不透水層52にはアスフア
ルトやアスフアルト乳剤モルタル等の止水材
53を注入し、さらにその止水材53の上方
には、土砂54を埋め戻す。
(5) Backfilling the trench (Figures 3 and 5) In the trench 51 where the water stop sheet 1 was installed,
For example, a water stop material 53 such as asphalt or asphalt emulsion mortar is injected into the deep impermeable layer 52, and earth and sand 54 is backfilled above the water stop material 53.

(6) 孔内充填 孔B以降の孔間にも以上の(1)〜(5)までの工
程を行い止水シート1を埋設する。
(6) Filling in the holes The above steps (1) to (5) are also performed in the holes after hole B to bury the water stop sheet 1.

全ての孔間に止水シート1の埋設作業を終
えたら、各孔A,B…内にアスフアルト等の
固結材8を流し込む。
After completing the work of embedding the water stop sheet 1 between all the holes, a consolidating material 8 such as asphalt is poured into each hole A, B, . . . .

以上のように止水シート1の両端部は、止
水材7,7に挟持され、しかも固結材8によ
つて埋設されることによつて、継手部9の止
水効果が著しく向上する。
As described above, both ends of the water stop sheet 1 are sandwiched between the water stop materials 7, 7, and are embedded in the consolidation material 8, thereby significantly improving the water stop effect of the joint portion 9. .

〈本発明の効果〉 本発明は以上説明したようになるので、次のよ
うな効果を期待することができる。
<Effects of the Present Invention> Since the present invention has been described above, the following effects can be expected.

(イ) ノズルの昇降と水平運行により、小さなノズ
ルで以て細幅の溝を連続して開削することがで
きる。
(b) By raising and lowering the nozzle and moving it horizontally, it is possible to continuously cut narrow grooves with a small nozzle.

(ロ) 剛性柱の背面に止水シートの一端を接続する
だけで、剛性柱を溝開削具としてだけでなく、
止水シートの敷設具として兼用することができ
る。
(b) By simply connecting one end of the waterstop sheet to the back of the rigid column, the rigid column can be used not only as a groove cutting tool, but also as a groove cutting tool.
It can also be used as a water stop sheet laying tool.

そのため、止水シートを敷設するための独立
した専用装置は必要とせず、工期的の大幅な短
縮化が図れる。
Therefore, there is no need for separate dedicated equipment for laying the water-stop sheet, and the construction period can be significantly shortened.

【図面の簡単な説明】[Brief explanation of drawings]

第1図:本発明の一実施例の説明図、第2図:
開削作業と止水シートの引き出しを並行して行つ
ているときの施工の説明図、第3図:開削した溝
内に止水シートを埋設するときの施工の説明図、
第4図:各孔内を充填して連続した止水壁を構築
したときの説明図、第5図:溝内の埋戻し時の縦
断面図。
Figure 1: An explanatory diagram of an embodiment of the present invention, Figure 2:
An explanatory diagram of construction when excavation work and pulling out of a water stop sheet are carried out in parallel, Figure 3: An explanatory diagram of construction when burying a water stop sheet in an excavated trench,
Fig. 4: An explanatory diagram when filling each hole to construct a continuous water-stop wall. Fig. 5: A vertical cross-sectional view when backfilling the trench.

Claims (1)

【特許請求の範囲】 1 地盤に複数の孔を開設し、 剛性柱に超高圧水噴射用ノズルを昇降自在に装
備したウオータージエツト装置を使用し、 前記一方の孔内にウオータージエツト装置と共
に止水シートを位置させ、 前記剛性柱の背面に止水シートの一端を接続
し、 ノズルの昇降と剛性柱の平行移動により孔間に
細幅の溝を連続して開設する工程と、 剛性柱の平行移動により止水シートを溝内へ連
続して引き出して孔間に止水シートを敷設する工
程を並行して行う、 簡易止水壁の施工方法。
[Scope of Claims] 1. A plurality of holes are opened in the ground, and a water jet device is installed in which a rigid column is equipped with an ultra-high pressure water injection nozzle that can be moved up and down, and the water jet device and the water jet device are installed in one of the holes. a step of positioning a water stop sheet, connecting one end of the water stop sheet to the back surface of the rigid column, and continuously opening narrow grooves between the holes by raising and lowering the nozzle and moving the rigid column in parallel; A method for constructing a simple water-stop wall, in which the water-stop sheet is continuously pulled out into the groove by parallel movement of the water-stop sheet, and the process of laying the water-stop sheet between the holes is carried out in parallel.
JP15149686A 1986-06-30 1986-06-30 Construction of simple cut-off wall Granted JPS6311713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15149686A JPS6311713A (en) 1986-06-30 1986-06-30 Construction of simple cut-off wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15149686A JPS6311713A (en) 1986-06-30 1986-06-30 Construction of simple cut-off wall

Publications (2)

Publication Number Publication Date
JPS6311713A JPS6311713A (en) 1988-01-19
JPH045093B2 true JPH045093B2 (en) 1992-01-30

Family

ID=15519770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15149686A Granted JPS6311713A (en) 1986-06-30 1986-06-30 Construction of simple cut-off wall

Country Status (1)

Country Link
JP (1) JPS6311713A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388931A (en) * 1993-10-18 1995-02-14 Carlson; Robert J. Cutoff wall system to isolate contaminated soil
JP2006217780A (en) 2005-02-07 2006-08-17 Yamaha Motor Co Ltd Inverter ac power plant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122214A (en) * 1974-08-19 1976-02-21 Kajima Corp DODOMESHI SUIHEKIKOHO
JPS54119710A (en) * 1978-03-09 1979-09-17 Obayashi Gumi Kk Method of construction of underground water shielding layer installation
JPS5627653A (en) * 1979-08-13 1981-03-18 Sekisui Chem Co Ltd Method for measuring antigen or antibody
JPS5634820A (en) * 1980-01-28 1981-04-07 Kajima Corp Cofferdam and constructing method thereof
JPS5685018A (en) * 1979-12-12 1981-07-10 Shimizu Constr Co Ltd Construction of water shielding wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122214A (en) * 1974-08-19 1976-02-21 Kajima Corp DODOMESHI SUIHEKIKOHO
JPS54119710A (en) * 1978-03-09 1979-09-17 Obayashi Gumi Kk Method of construction of underground water shielding layer installation
JPS5627653A (en) * 1979-08-13 1981-03-18 Sekisui Chem Co Ltd Method for measuring antigen or antibody
JPS5685018A (en) * 1979-12-12 1981-07-10 Shimizu Constr Co Ltd Construction of water shielding wall
JPS5634820A (en) * 1980-01-28 1981-04-07 Kajima Corp Cofferdam and constructing method thereof

Also Published As

Publication number Publication date
JPS6311713A (en) 1988-01-19

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