CN204401638U - A kind of foundation pit waterproof curtain wall - Google Patents
A kind of foundation pit waterproof curtain wall Download PDFInfo
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- CN204401638U CN204401638U CN201420824423.0U CN201420824423U CN204401638U CN 204401638 U CN204401638 U CN 204401638U CN 201420824423 U CN201420824423 U CN 201420824423U CN 204401638 U CN204401638 U CN 204401638U
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of foundation pit waterproof curtain wall, belong to foundation pit construction field, the water-stop curtain that at least one deck is made up of some high-pressure rotary jet grouting piles is set outside foundation pit supporting pile or between stake, following impervious stratum at the bottom of Foundation Pit is placed at the bottom of each Pile of High-pressure Spiral Jet, mutually be engaged between the adjacent high-pressure rotary jet grouting pile of described same layer water-stop curtain, and be also mutually engaged between adjacent high-pressure rotary jet grouting pile between adjacent layer water-stop curtain, the water-stop curtain be located between stake is also engaged with between soldier pile, and the occlusion position of high-pressure rotary jet grouting pile is 1/4 ~ 1/3 of a footpath.The utility model is large at groundwater seepage coefficient, when taking tube well dewatering difficulty large, can play good occlusion advantage, convenient and swift, is the significant foundation pit waterproof curtain wall of a kind of stagnant water effect.
Description
Technical field
The utility model belongs to foundation pit construction field, particularly relates to foundation ditch sealing construction.
Background technology
At present, conventional water-stop curtain comprises deep-mixed pile curtain wall, high-pressure rotary-spray (comprising pendulum pressure spray process) curtain wall etc.
The advantage of deep-mixed pile water protecting curtain is that after stirring, cement-soil is waterproof, and speed of application is fast, and cost is low.But be engaged restricted between the curtain degree of depth and stake, SPT blow count is greater than 15 soil layers hit and is difficult to construction, and pile body verticality requires high, if deviation easily causes fork, pin leaks.
Existing high-pressure rotary jet grouting pile with the nozzle of high pressure rotary, cement paste is sprayed into soil layer to mix with the soil body, forms the cement stabilization body of lap connection.Construction area is few, it is little to vibrate, noise is lower, but easy contaminated environment, cost is higher, should not adopt for the special soil property of ejection grout cures that can not make.
Water-stop curtain made by high pressure swing spray wall can form the good impermeable wall of overlap joint, stagnant water effect is good, speed of application is fast, but to reduce stagnant water effect because cement-soil pile body solidification effect is bad at soft layer rotary churning pile and add engineering point danger, and cost is a little more than agitation pile simultaneously.
Utility model content
The purpose of this utility model is: propose a kind of large at groundwater seepage coefficient, when taking tube well dewatering difficulty large, can play good occlusion advantage, convenient and swift, the significant foundation pit waterproof curtain wall of stagnant water effect.
The utility model object is realized by following technical proposals:
A kind of foundation pit waterproof curtain wall, the water-stop curtain that at least one deck is made up of some high-pressure rotary jet grouting piles is set outside foundation pit supporting pile or between stake, following impervious stratum at the bottom of Foundation Pit is placed at the bottom of each Pile of High-pressure Spiral Jet, mutually be engaged between the adjacent high-pressure rotary jet grouting pile of described same layer water-stop curtain, and be also mutually engaged between adjacent high-pressure rotary jet grouting pile between adjacent layer water-stop curtain, the water-stop curtain be located between stake is also engaged with between soldier pile, and the occlusion position of Pile of High-pressure Spiral Jet is 1/4 ~ 1/3 of a footpath.
As selection, be mutually engaged between at least 3 adjacent high-pressure rotary jet grouting piles of adjacent layer water-stop curtain and be engaged with soldier pile.
The course of work is: this foundation pit waterproof curtain wall construction, high-pressure rotary-spray interlocking pile is set outside foundation ditch or between stake, utilizes high-pressure rotary-spray to be engaged and form continuous print reinforcement walls, strengthen the impermeability of composite foundation, prevent Groundwater Flow and basement buoyancy, and reach the object of precipitation in hole.
The beneficial effects of the utility model:
1) high-pressure rotary-spray is utilized to solidify and replace the natural foundation pit side-wall soil body;
2) utilize high-pressure rotary-spray to be engaged and form continuous print water-stop curtain wall;
3) supporting and protection structure integral rigidity and side bearing capacity ability is strengthened;
4) high-pressure rotary-spray occlusion wall strengthens the impermeability of the foundation pit side-wall soil body, prevents Groundwater Flow and basement buoyancy;
5) lower the requirement to foundation pit side-wall natural rock-filled, technique is simple, different soil strong adaptability.
Accompanying drawing explanation
Fig. 1 is the rotary churning pile water stopping curtain wall floor map of the utility model embodiment 1;
Fig. 2 is the rotary churning pile water stopping curtain wall sectional drawing of the utility model embodiment 1;
Fig. 3 is the rotary churning pile water stopping curtain wall floor map of the utility model embodiment 2;
Fig. 4 is the rotary churning pile water stopping curtain wall floor map of the utility model embodiment 3;
Wherein in figure, (1) is foundation ditch sideline, (2) be high-pressure rotary jet grouting pile, (3) high-pressure rotary jet grouting pile occlusion position, (4) water-stop curtain wall, (5) be stake top mark high (natural ground), (6) are foundation ditch bottom surface.
Detailed description of the invention
Following non-limiting examples is for illustration of the utility model.
Embodiment 1:
Shown in figure 1,2, a kind of foundation pit waterproof curtain wall, at the water-stop curtain wall 4 that foundation ditch arranged outside one deck is made up of some high-pressure rotary jet grouting piles 2, following impervious stratum at the bottom of Foundation Pit is placed at the bottom of each high-pressure rotary jet grouting pile 2, mutually be engaged between adjacent high-pressure rotary jet grouting pile 2 with layer water-stop curtain wall 4, the occlusion position 3 of Pile of High-pressure Spiral Jet 2 is 1/3 ~ 1/2 of stake footpath.
Embodiment 2:
Shown in figure 3, a kind of foundation pit waterproof curtain wall, at the two-layer water-stop curtain wall 4 be made up of some high-pressure rotary jet grouting piles 2 of foundation ditch arranged outside, each Pile of High-pressure Spiral Jet 2 end, is placed in following impervious stratum at the bottom of Foundation Pit, mutually be engaged between adjacent high-pressure rotary jet grouting pile 2 with layer water-stop curtain wall 4, and be also mutually engaged between adjacent high-pressure rotary jet grouting pile 2 between adjacent layer water-stop curtain wall 4, the occlusion position 3 of Pile of High-pressure Spiral Jet 2 is 1/4 ~ 1/3 of stake footpath.Mutually be engaged between 4 adjacent high-pressure rotary jet grouting piles 2 of adjacent layer water-stop curtain wall 4.
Embodiment 3:
Shown in figure 4, the present embodiment is substantially the same manner as Example 2, and its difference is: be mutually engaged between 3 adjacent high-pressure rotary jet grouting piles 2 of adjacent layer water-stop curtain wall 4.
Embodiment 4:
The present embodiment is substantially identical with embodiment 2,3, and its difference is: between foundation pit supporting pile, arrange the water-stop curtain wall 4 that at least one deck is made up of some high-pressure rotary jet grouting piles 2, and the water-stop curtain be located between stake is also engaged with between soldier pile.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a foundation pit waterproof curtain wall, it is characterized in that: the water-stop curtain that at least one deck is made up of some high-pressure rotary jet grouting piles is set outside foundation pit supporting pile or between stake, following impervious stratum at the bottom of Foundation Pit is placed at the bottom of each Pile of High-pressure Spiral Jet, mutually be engaged between the adjacent high-pressure rotary jet grouting pile of described same layer water-stop curtain, and be also mutually engaged between adjacent high-pressure rotary jet grouting pile between adjacent layer water-stop curtain, the water-stop curtain be located between stake is also engaged with between soldier pile, and the occlusion position of Pile of High-pressure Spiral Jet is 1/4 ~ 1/3 of a footpath.
2. foundation pit waterproof curtain wall as claimed in claim 1, is characterized in that: be mutually engaged between at least 3 adjacent high-pressure rotary jet grouting piles of adjacent layer water-stop curtain and be engaged with soldier pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824423.0U CN204401638U (en) | 2014-12-23 | 2014-12-23 | A kind of foundation pit waterproof curtain wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420824423.0U CN204401638U (en) | 2014-12-23 | 2014-12-23 | A kind of foundation pit waterproof curtain wall |
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| Publication Number | Publication Date |
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| CN204401638U true CN204401638U (en) | 2015-06-17 |
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| CN201420824423.0U Active CN204401638U (en) | 2014-12-23 | 2014-12-23 | A kind of foundation pit waterproof curtain wall |
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| CN (1) | CN204401638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499495A (en) * | 2014-12-23 | 2015-04-08 | 中国建筑西南勘察设计研究院有限公司 | Waterproof curtain wall for foundation pit |
| CN106120828A (en) * | 2016-06-23 | 2016-11-16 | 程华清 | A kind of Sandwich biscuit type curtain water stop construction method of diaphragm wall |
| CN107227958A (en) * | 2017-07-25 | 2017-10-03 | 马钢(集团)控股有限公司 | Shaft wall structure, constructing device and the method for the high spray curtain pile of shaft collar section |
-
2014
- 2014-12-23 CN CN201420824423.0U patent/CN204401638U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499495A (en) * | 2014-12-23 | 2015-04-08 | 中国建筑西南勘察设计研究院有限公司 | Waterproof curtain wall for foundation pit |
| CN106120828A (en) * | 2016-06-23 | 2016-11-16 | 程华清 | A kind of Sandwich biscuit type curtain water stop construction method of diaphragm wall |
| CN107227958A (en) * | 2017-07-25 | 2017-10-03 | 马钢(集团)控股有限公司 | Shaft wall structure, constructing device and the method for the high spray curtain pile of shaft collar section |
| CN107227958B (en) * | 2017-07-25 | 2023-07-04 | 马钢(集团)控股有限公司 | Well wall structure of vertical well neck section high-spraying curtain pile, construction device and construction method |
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