JPH045093B2 - - Google Patents
Info
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
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.
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)
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.
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)
| 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)
| 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 |
-
1986
- 1986-06-30 JP JP15149686A patent/JPS6311713A/en active Granted
Patent Citations (5)
| 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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