JPS63297625A - Underground continuous cut-off wall construction work - Google Patents
Underground continuous cut-off wall construction workInfo
- Publication number
- JPS63297625A JPS63297625A JP13291987A JP13291987A JPS63297625A JP S63297625 A JPS63297625 A JP S63297625A JP 13291987 A JP13291987 A JP 13291987A JP 13291987 A JP13291987 A JP 13291987A JP S63297625 A JPS63297625 A JP S63297625A
- Authority
- JP
- Japan
- Prior art keywords
- water
- trench
- sheet
- joiner
- groove
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000004848 polyfunctional curative Substances 0.000 abstract 2
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は地中連続遮水壁工法に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to an underground continuous impermeable wall construction method.
地下構造物を施工中の地下水の湧水を防ぎ、或いはダム
工事における地下水の止水等を目的として地中連続壁を
構築するが、シートパイルを打設してジヨイント部に注
入を行う等の工法が採用されている。Continuous underground walls are constructed to prevent groundwater from springing up during construction of underground structures, or to stop groundwater during dam construction. construction method has been adopted.
これら従来の工法を止水のみを目的として構築する場合
、以下のような問題がある。When these conventional construction methods are used for construction purposes only to stop water, the following problems arise.
■ 地中連続壁は必要以上の壁厚を施工するのが通常で
あり、施工が不必要に大がかりとなるとともに余分なコ
ンクリートを大量に使用して施工費が高価である。■ Underground continuous walls are usually constructed with a wall thickness greater than necessary, making the construction unnecessarily large-scale and requiring a large amount of excess concrete, resulting in high construction costs.
＠ シートパイルを打設してジヨイント部に注入を行う
工法も同じく施工が大がかりであり、材料費が高価であ
る。＠ The method of driving sheet piles and injecting into the joints also requires extensive construction and is expensive in material cost.
Ｏ地中連続壁において施工費を安価にするために壁厚を
薄く造ることも考えられるが、狭巾の溝を掘削し得る機
械もなく、例え狭巾の溝が掘れたとしてもコンクリート
の流動性が損なわれて均質な地中壁は完成できない。It is possible to make the wall thinner in order to reduce the construction cost for an underground continuous wall, but there is no machine that can excavate a narrow trench, and even if a narrow trench could be dug, the flow of concrete would be poor. A homogeneous underground wall cannot be completed due to the loss of properties.
■ また止水の確実性及び信頼性の点で見れば、コンク
リート壁は地震時のクラックが止水性を損なわせ、プレ
キャストコンクリ−ドパ名ルやシートパイルを使用した
工法ではジヨイント部に夾雑物、ヘントナイト等を挾み
込み充分な止水性能を得ることができなかった。■ In addition, from the point of view of water stoppage reliability and reliability, cracks in concrete walls during earthquakes impair the waterstop performance, and construction methods that use precast concrete panels and sheet piles have contaminants in the joints. , hentonite, etc., and it was not possible to obtain sufficient water-stopping performance.
この発明は、施工が容易であって施工費が安価となり、
且つ止水の確実性、信頬性の高い遮水壁を構築可能な地
中連続遮水壁工法を提供することを目的とする。This invention is easy to construct and has low construction costs.
It is an object of the present invention to provide an underground continuous impermeable wall construction method that can construct an impermeable wall that is highly reliable and reliable in stopping water.
この発明にかかる地中連続遮水壁工法は、地盤に溝を形
成し、この溝内に巻付は軸に巻付けた遮水シートを垂直
に降下する。巻上げ軸から遮水シートを引出しながら溝
方向に移動する。In the continuous underground impermeable wall construction method according to the present invention, a groove is formed in the ground, and the impermeable sheet wrapped around a shaft is vertically lowered into the groove. Move in the direction of the groove while pulling out the water shielding sheet from the winding shaft.
この遮水シートによって溝を巾方向左右に仕切る。溝内
の泥水を硬化、或いは溝内にソイルモルタルを充填して
遮水シートを間に挟んだ遮水壁を構築する。This water-blocking sheet partitions the groove into left and right sides in the width direction. A water-shielding wall is constructed by hardening the muddy water in the trench or filling the trench with soil mortar and sandwiching a water-shielding sheet between them.
溝掘削、遮水シート配設、泥水固化、或いはソイルモル
タル充填という施工であり、施工が大がかりにならず、
筒易となる。The construction involves digging trenches, installing water-shielding sheets, solidifying muddy water, or filling with soil mortar, so the construction is not large-scale.
It becomes easy to use.
遮水シートを配設したため、タラワク等とは無関係に止
水性が確保される。Because a water-blocking sheet has been installed, water-stopping properties are ensured regardless of Tarawak etc.
以下、図に示す一実施例に基づきこの発明の詳細な説明
する。Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.
〈１〉 溝掘削
地盤に溝１を掘削する。溝１の巾は大きくなくともよく
、その分施工が大がかりとならない。<1> Trench excavation Excavate trench 1 in the ground. The width of the groove 1 does not need to be large, so the construction does not require a large scale.
溝ｌ掘削にはオーガー等を使用し、溝１内には安定液と
して泥水２を充填する。An auger or the like is used to excavate the groove 1, and the groove 1 is filled with muddy water 2 as a stabilizing liquid.
〈２〉 遮水シート
遮水シート３はポリエチレンシート等が採用でき、一端
全長は長尺棒状のシートジョイナ−４に接着されている
。他端の全長は断面Ｃ字状の長尺のシートジョイナ−５
に接着されている。<2> Water-shielding sheet The water-shielding sheet 3 can be made of polyethylene sheet, etc., and one end of the sheet is glued to a sheet joiner 4 in the form of a long rod. The entire length of the other end is a long sheet joiner 5 with a C-shaped cross section.
is glued to.
尚、遮水シート３にはシートジョイナ−５近くにポケッ
ト状の縫込パッカー９が形成されている。Incidentally, a pocket-shaped sewn-in packer 9 is formed in the water-shielding sheet 3 near the sheet joiner 5.
この遮水シート３を巻上げ軸である引込ジョイナ−６に
巻付ける。引込ジョイナ−６は長尺棒状であって、上下
端に回転可能なリング７゜７が取付けられ、このリング
７．７にワイヤ取付部８．８が突設されている。前記断
面Ｃ字状のシートジョイナ−５内に引込ジョイナ−６を
嵌合し、引込ジョイナ−６外周に第６図のように遮水シ
ート３を巻付ける。This water-blocking sheet 3 is wound around a pull-in joiner 6 that is a winding shaft. The retractable joiner 6 is in the form of a long rod, and a rotatable ring 7.7 is attached to the upper and lower ends thereof, and a wire attachment portion 8.8 is protruded from the ring 7.7. A retractable joiner 6 is fitted into the sheet joiner 5 having a C-shaped cross section, and a water-blocking sheet 3 is wrapped around the outer periphery of the retractable joiner 6 as shown in FIG.
前記引込ジョイナ−６のワイヤ取付部８，８にワイヤ１
０．１０を結びつけ、このワイヤ１０゜１０を円筒状の
引込ボスト１１内のシーブ１２゜１２にかける。ワイヤ
１０．１０は引込ボスト１１上方に伸ばす。The wire 1 is attached to the wire attachment portions 8, 8 of the retractable joiner 6.
0.10, and this wire 10°10 is hung on the sheave 12°12 in the cylindrical lead-in boss 11. The wire 10.10 extends above the entry post 11.
く３〉 遮水シート降下（第１図）
遮水シート３を溝１内に降下する。上記したように引込
ジョイナ−６に巻付けた遮水シート３と引込ボスト１１
を溝１内に降下する。遮水シート３と引込ボスト１１は
一定距離離して降下するものであって、既に配設した遮
水シート３があれば、シートジョイナ−５を既設の遮水
シート３の引込ジョイナ−６内に嵌合して連結する。3〉 Lowering the water-shielding sheet (Fig. 1) Lower the water-shielding sheet 3 into the groove 1. The water-blocking sheet 3 and the retractable boss 11 wrapped around the retractable joiner 6 as described above
is lowered into groove 1. The water-shielding sheet 3 and the retractable post 11 are lowered at a certain distance apart, and if there is a water-shielding sheet 3 already installed, the sheet joiner 5 is inserted into the retractable joiner 6 of the existing water-shielding sheet 3. Fit and connect.
〈４〉 遮水シート配設（第２図）
引込ボスト１１の上方に伸ばしたワイヤ１０゜１０を引
いて巻上げ軸である引込ジョイナ−６を引込ボスト１１
方向へ引寄せる。引込ジョイナ−６を移動するにつれて
遮水シート３を引出し、溝１を巾方向左右に仕切るよう
に溝１内に配設する。<4> Installation of water-shielding sheet (Fig. 2) Pull the wire 10° 10 extended above the lead-in post 11 to connect the lead-in joiner 6, which is the winding shaft, to the lead-in post 11.
pull in a direction. As the pull-in joiner 6 moves, the water-blocking sheet 3 is pulled out and placed in the groove 1 so as to partition the groove 1 into right and left sides in the width direction.
く５〉 バッカー（第３図）
前記遮水シート３の縫込バッカー９内に水或いは空気を
注入して溝１を仕切る。5> Backer (Fig. 3) Water or air is injected into the sewn-in backer 9 of the water-shielding sheet 3 to partition the groove 1.
〈６〉 泥水固化（第４図）
バッカー９によって仕切った溝１の泥水２内にモルタル
、コンクリート等の硬化材を注入して泥水を固化し、遮
水壁を構築する。<6> Solidification of muddy water (Fig. 4) A hardening material such as mortar or concrete is injected into the muddy water 2 in the groove 1 partitioned by the backer 9 to solidify the muddy water and construct an impermeable wall.
泥水固化後、引込ポスト１１と引込ジョイナ−６をＹｎ
ｌから引上げる。After the muddy water solidifies, the retraction post 11 and retraction joiner 6 are
Pull it up from l.
岩等の自立性の良い土質の場合は、泥水を必要とせず無
水掘削が可能であり、シート配設後の溝内の充填剤は泥
水固化でなく、ソイルモルタルを流入充填させる。In the case of soil with good self-supporting properties such as rocks, waterless excavation is possible without the need for muddy water, and the filler in the trench after sheet placement is not solidified with muddy water, but filled with soil mortar.
〔発明の効果〕
この発明は以上のような構成を有し、以下のような効果
を得ることができる。[Effects of the Invention] The present invention has the above configuration and can obtain the following effects.
■ 溝を掘削し、遮水シートを配設し、泥水を固化、或
いはソイルモルタルを充填するだけであるため、施工は
容易となり、大がかりな施工は不要で施工費は安価とな
る。■ Construction is easy, as it only involves digging a trench, placing a water-blocking sheet, solidifying the muddy water, or filling it with soil mortar, and there is no need for large-scale construction, making the construction cost low.
＠ 完成した遮水壁は内側に遮水シートを挾み込むため
、地震等によるクラックが発生しても止水が損なわれる
ことがなく、確実性、信頼性が高くなる。@ The completed water-shielding wall will have a water-shielding sheet sandwiched inside, so even if cracks occur due to earthquakes, water-stopping will not be impaired, and reliability and reliability will be high.
Ｏ泥水を固化、或いはソイルモルタルを充填して構築す
るため、地中壁全体を均一な地中壁とすることができる
。また例え強度の低下する部分が生じても上記のように
遮水シートによって止水性は確保される。Since it is constructed by solidifying O mud or filling with soil mortar, the entire underground wall can be made into a uniform underground wall. Furthermore, even if there is a portion where the strength is reduced, water-stopping properties are ensured by the water-blocking sheet as described above.
第１図〜第４図はこの発明に係る地中連続遮水壁工法の
施工順序の一実施例であって、 （１）は平面図、（■
）はその縦断面図、第５図は遮水シートの斜視図、第６
図はその巻上げた状態の平面図、第７図は遮水シートと
引込ポストの斜視図である。
■・・・・・・溝、２・・・・・・泥水、３・・・・・
・遮水シート、４・・・・・・シートジョイナ−１５・
・・・・・シートジョイナ−１６・・・・・・引込ジョ
イナ−２９・・・・・・縫込パッカー、１０・・・・・
・ワイヤ、１１・・・・・・引込ボスト第 １ 図
第 ２ 間第３図
ｗＸ４図Figures 1 to 4 show an example of the construction order of the underground continuous impermeable wall construction method according to the present invention, in which (1) is a plan view, (■
) is its vertical cross-sectional view, Figure 5 is a perspective view of the water-blocking sheet, and Figure 6 is a perspective view of the water-shielding sheet.
The figure is a plan view of the rolled-up state, and FIG. 7 is a perspective view of the water-blocking sheet and the retractable post. ■・・・Groove, 2...Muddy water, 3...
・Waterproof sheet, 4...Sheet joiner-15・
... Sheet joiner 16 ... Retractable joiner 29 ... Sewing packer, 10 ...
・Wire, 11... Lead-in boss Fig. 1
2nd room Figure 3
wX4 diagram
Claims (1)
垂直に降下し、巻上げ軸から遮水シートを引出しながら
溝方向に移動して溝を巾方向左右に仕切るよう溝内に遮
水シートを配設し、溝内の泥水を硬化、或いは溝内にソ
イルモルタルを充填して遮水シートを間に挟んだ遮水壁
を構築することを特徴とする地中連続遮水壁工法。The water-shielding sheet wrapped around the winding shaft is lowered vertically into the groove formed in the ground, and the water-shielding sheet is pulled out from the winding shaft while moving toward the groove, and the water-shielding sheet is placed inside the groove to partition the groove into left and right sides in the width direction. An underground continuous impermeable wall construction method characterized by arranging a water sheet and hardening the muddy water in the trench, or filling the trench with soil mortar to construct an impermeable wall with an impermeable sheet in between. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13291987A JPS63297625A (en) | 1987-05-28 | 1987-05-28 | Underground continuous cut-off wall construction work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13291987A JPS63297625A (en) | 1987-05-28 | 1987-05-28 | Underground continuous cut-off wall construction work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63297625A true JPS63297625A (en) | 1988-12-05 |
| JPH0433325B2 JPH0433325B2 (en) | 1992-06-02 |
Family
ID=15092578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13291987A Granted JPS63297625A (en) | 1987-05-28 | 1987-05-28 | Underground continuous cut-off wall construction work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63297625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685668A (en) * | 1994-09-07 | 1997-11-11 | Justice; Donald R. | Barrier wall installation system |
-
1987
- 1987-05-28 JP JP13291987A patent/JPS63297625A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685668A (en) * | 1994-09-07 | 1997-11-11 | Justice; Donald R. | Barrier wall installation system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433325B2 (en) | 1992-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |