CN102758448A - Underground continuous wall for preventing streaming around wall bottom and construction method thereof - Google Patents
Underground continuous wall for preventing streaming around wall bottom and construction method thereof Download PDFInfo
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- CN102758448A CN102758448A CN2011101109328A CN201110110932A CN102758448A CN 102758448 A CN102758448 A CN 102758448A CN 2011101109328 A CN2011101109328 A CN 2011101109328A CN 201110110932 A CN201110110932 A CN 201110110932A CN 102758448 A CN102758448 A CN 102758448A
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 13
- 238000007596 consolidation process Methods 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000009718 spray deposition Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 231100000241 scar Toxicity 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The invention discloses an underground continuous wall for preventing streaming around a wall bottom. The underground continuous wall comprises a continuous wall body, wherein a continuous cemented soil consolidation body is formed in a permeable layer below the wall bottom of the continuous wall. Compared with the prior art, the underground continuous wall has the advantages that: the cemented soil consolidation body is formed in the permeable layer at the bottom of the continuous wall body, so that the underground continuous wall has a good waterstop effect and can effectively prevent underground water from streaming around. In addition, the invention provides a construction process for the continuous wall.
Description
Technical field
The invention belongs to concrete stake (wall) technical field that space enclosing structure is used, particularly-kind of wall at the bottom of the anti-diaphragm wall that streams.
Background technology
Diaphragm wall is as a kind of space enclosing structure, and its construction technology is very ripe, in the underground support engineering, is used widely.But under the formation condition of, rich groundwater big in disappearance below the substrate impervious layer and scar height fluctuations, intercepting water at the bottom of the continuous wall (anti-streaming) effect will be difficult to guarantee; As in the South China; Karst is extremely grown, and the grey scar discrepancy in elevation changes greatly, and often only covers layer of sand or thin layer impervious layer more than the scar; If want to intercept water fully at the bottom of the continuous wall, go at the bottom of the wall then that the rock degree of depth is big, pore-forming card hammer is frequent, verticality is difficult to control, cost height, quality can't guarantee.So, select a kind ofly can satisfy pattern foundation pit supporting structure, go into rock, easy construction less, can solve the technology of streaming at the bottom of the wall again, be the problem that vast geotechnical engineering technician is studying always.
Summary of the invention
The technical problem that the present invention will solve provides-kind of wall at the bottom of the anti-diaphragm wall that streams.
Another technical problem to be solved by this invention provides a kind of job practices of above-mentioned diaphragm wall.
The technical solution adopted for the present invention to solve the technical problems is:
Prevent at the bottom of-kind of the wall streaming diaphragm wall, comprise the diaphragm wall body of wall, be formed with continuous cement-soil induration at the bottom of the wall of said diaphragm wall body of wall in the following pervious layer.
Compared with prior art, the invention has the beneficial effects as follows: owing in the pervious layer of continuous body of wall bottom, have the cement-soil induration, have good stagnant water effect, can prevent effectively that underground water from streaming.
Prevent at the bottom of the above-mentioned wall of the present invention streaming the construction of continuous concrete wall method, may further comprise the steps:
1), in the continuous wall body construction process in reinforced mesh pre-buried pipe;
2), concreting;
3), in pipe following drilling rod, drill pervious layer to impervious layer or rock stratum at the bottom of the wall;
4), carry out churning, pendulum spray or slip casting operation, pervious layer use slurry consolidation, at the continuous cement-soil induration of diaphragm wall bottom to formation between impervious layer or the rock stratum.
The present invention prevents streaming the construction of continuous concrete wall method at the bottom of a kind of above-mentioned wall also is provided, and may further comprise the steps:
1), concreting is built completion continuous wall body construction;
2), drill the diaphragm wall body of wall with drilling machine;
3), through step 2) hole of being bored carries out churning, pendulum spray or slip casting operation to the wall bottom, diaphragm wall body of wall bottom pervious layer use slurry consolidation, at the continuous cement-soil induration of diaphragm wall body of wall bottom to formation between impervious layer or the rock stratum.
Above-mentioned two method technologies provided by the present invention are simple, can effectively shorten the integral construction duration, than reaching more than 40% directly into the rock construction saving construction period at the bottom of the continuous wall, save construction costs.The risk towards rock disturbance solution cavity, the risk of having avoided blocking the hammer bury drills have been avoided simultaneously.In sum, method of the present invention has simply, practical, cost is low, anti-ly stream good effectiveness and advantage, be fit to apply.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is the anti-continuous underground wall structure elevational schematic view of streaming at the bottom of the wall of the present invention;
Fig. 2 is the anti-continuous underground wall structure floor map of streaming at the bottom of the wall of the present invention.
The specific embodiment
See figures.1.and.2, prevent at the bottom of of the present invention-kind of wall streaming diaphragm wall, comprise diaphragm wall body of wall 1, be formed with continuous cement-soil induration 3 at the bottom of the wall of said diaphragm wall body of wall 1 in the following pervious layer.Owing in the pervious layer of continuous body of wall 1 bottom, have cement-soil induration 3, have good stagnant water effect, can prevent effectively that underground water from streaming.
Prevent at the bottom of a kind of above-mentioned wall of the present invention streaming the construction of continuous concrete wall method, may further comprise the steps:
1), in diaphragm wall body of wall 1 work progress in reinforced mesh pre-buried pipe 2;
2), concreting;
3), in pipe 2 following drilling rod, drill pervious layer to impervious layer or rock stratum 4 at the bottom of the wall;
4), carry out churning, pendulum spray or slip casting operation, pervious layer use slurry consolidation, at the continuous cement-soil induration 3 of diaphragm wall bottom to formation between impervious layer or the rock stratum 4.
The present invention prevents streaming the construction of continuous concrete wall method at the bottom of a kind of above-mentioned wall also is provided, and may further comprise the steps:
1), concreting is built the construction of completion diaphragm wall body of wall 1;
2), drill diaphragm wall body of wall 1 with drilling machine;
3), through step 2) hole of being bored carries out churning, pendulum spray or slip casting operation to the wall bottom, pervious layer at the bottom of the diaphragm wall body of wall wall use slurry consolidation, the continuous cement-soil induration of formation between diaphragm wall body of wall 1 bottom to impervious layer or rock stratum 4.
Above-mentioned two method technologies are simple, can effectively shorten the integral construction duration, than reaching more than 40% directly into the rock construction saving construction period at the bottom of the continuous wall, save construction costs.The risk towards rock disturbance solution cavity, the risk of having avoided blocking the hammer bury drills have been avoided simultaneously.In sum, method of the present invention has simply, practical, cost is low, anti-ly stream good effectiveness and advantage, be fit to apply.
Certainly; The invention is not limited to above-mentioned embodiment; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (3)
1.-and anti-ly at the bottom of kind of the wall stream diaphragm wall, comprise diaphragm wall body of wall (1), it is characterized in that: be formed with continuous cement-soil induration (2) at the bottom of the wall of said diaphragm wall body of wall (1) in the following pervious layer.
2. prevent streaming the construction of continuous concrete wall method at the bottom of the described wall of claim 1, may further comprise the steps:
1), in the continuous wall body construction process in reinforced mesh pre-buried pipe;
2), concreting;
3), in pipe following drilling rod, drill pervious layer to impervious layer or rock stratum at the bottom of the wall;
4), carry out churning, pendulum spray or slip casting operation, pervious layer use slurry consolidation, at the continuous cement-soil induration of diaphragm wall bottom to formation between impervious layer or the rock stratum.
3. prevent streaming the construction of continuous concrete wall method at the bottom of the described wall of claim 1, may further comprise the steps:
1), concreting is built completion continuous wall body construction;
2), drill the diaphragm wall body of wall with drilling machine;
3), through step 2) hole of being bored carries out churning, pendulum spray or slip casting operation to the wall bottom, diaphragm wall body of wall bottom pervious layer use slurry consolidation, at the continuous cement-soil induration of diaphragm wall body of wall bottom to formation between impervious layer or the rock stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101109328A CN102758448A (en) | 2011-04-29 | 2011-04-29 | Underground continuous wall for preventing streaming around wall bottom and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101109328A CN102758448A (en) | 2011-04-29 | 2011-04-29 | Underground continuous wall for preventing streaming around wall bottom and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758448A true CN102758448A (en) | 2012-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101109328A Pending CN102758448A (en) | 2011-04-29 | 2011-04-29 | Underground continuous wall for preventing streaming around wall bottom and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102758448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411557A (en) * | 2020-09-21 | 2021-02-26 | 广东华隧建设集团股份有限公司 | Underground continuous wall and micro-disturbance omnibearing jet grouting pile combined water stopping method |
| CN113699976A (en) * | 2021-08-05 | 2021-11-26 | 上海申通地铁集团有限公司 | Steel reinforcement cage and construction method of underground continuous wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285678A (en) * | 2003-03-20 | 2004-10-14 | Fujita Corp | Method and structure for suppressing buoyancy of structure |
| CN101215834A (en) * | 2007-12-31 | 2008-07-09 | 浙江省一建建设集团有限公司 | Construction Method of Outrigger Type Diaphragm Wall |
| CN101435198A (en) * | 2008-12-23 | 2009-05-20 | 中铁二院工程集团有限责任公司 | Deep pit support reinforcing anti-seepage water stop composite structure |
| CN101793024A (en) * | 2010-03-31 | 2010-08-04 | 中交二航局第三工程有限公司 | Construction method for multi-head small-diameter deep mixing and high-pressure jet combined anti-seepage wall of foundation pit |
-
2011
- 2011-04-29 CN CN2011101109328A patent/CN102758448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285678A (en) * | 2003-03-20 | 2004-10-14 | Fujita Corp | Method and structure for suppressing buoyancy of structure |
| CN101215834A (en) * | 2007-12-31 | 2008-07-09 | 浙江省一建建设集团有限公司 | Construction Method of Outrigger Type Diaphragm Wall |
| CN101435198A (en) * | 2008-12-23 | 2009-05-20 | 中铁二院工程集团有限责任公司 | Deep pit support reinforcing anti-seepage water stop composite structure |
| CN101793024A (en) * | 2010-03-31 | 2010-08-04 | 中交二航局第三工程有限公司 | Construction method for multi-head small-diameter deep mixing and high-pressure jet combined anti-seepage wall of foundation pit |
Non-Patent Citations (1)
| Title |
|---|
| 蒋学文: "广州地铁大坦沙站围护结构优化设计与施工", 《广东土木与建筑》, no. 10, 31 October 2005 (2005-10-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411557A (en) * | 2020-09-21 | 2021-02-26 | 广东华隧建设集团股份有限公司 | Underground continuous wall and micro-disturbance omnibearing jet grouting pile combined water stopping method |
| CN113699976A (en) * | 2021-08-05 | 2021-11-26 | 上海申通地铁集团有限公司 | Steel reinforcement cage and construction method of underground continuous wall |
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Application publication date: 20121031 |