Underground diaphragm wall leaking stoppage device and method
A technology of underground diaphragm wall and plugging method, which is applied in excavation, underwater structures, water conservancy projects, etc., can solve the problems of personnel and property destruction, poor plugging effect, overturning and collapse of foundation pit, etc., and achieves fast construction speed, The effect of saving materials and preventing leakage
Inactive Publication Date: 2020-10-13
浙江土工岩土科技有限公司
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Problems solved by technology
2) Piping in the foundation pit: the sand, cement and soil are filled with the foundation pit, and people and machinery are buried, which poses a serious risk
3) Voids appear outside the foundation pit: it poses risks to surrounding buildings, underground pipelines and external roads
4) Instability of the foundation pit: monitoring and alarm, the support falls, the foundation pit overturns and collapses, resulting in the destruction of personnel and property
The existing wall plugging technology is to weld a large area of wall seam steel plate to plug the leak, but the plugging effect is mixed.
Method used
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[0028] The present invention will be described in more detail below in conjunction with the accompanying drawings. It should be noted that the following description of the present invention with reference to the accompanying drawings is only illustrative rather than limiting. Different embodiments can be combined with each other to form other embodiments not shown in the following description.
[0029] see figure 1 and 2 , an underground diaphragm wall plugging device, the underground diaphragm wall includes a leading wall 6 and a rear wall 7, the gap is formed between the leading wall 6 and the rear wall 7, the underground diaphragm wall plugging device, Including: gauze 1, laid on the gap of the underground diaphragm wall; several expansion bolts 2 installed on the underground diaphragm wall and distributed on both sides of the gap, and steel bars welded to each of the expansion bolts 2 3; cement 4, covering the steel bar 3; a conduit 5, one end of which is inserted into t...
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The invention relates to an underground diaphragm wall leaking stoppage device and method. The underground diaphragm wall leaking stoppage device comprises a gauze element, a steel bar structure, cement and a guide pipe; the gauze element is laid at a gap of an underground diaphragm wall; the steel bar structure is mounted on the underground continuous wall and covers the gauze element; the cementcovers the steel bar structure; and one end of the guide pipe is inserted into the cement and extends into the steel bar structure. According to the underground diaphragm wall leaking stoppage deviceand method, direct plugging by using small pipes and the cement is higher in speed and efficiency than large-area steel plate welding; the problems that uneven settlement of two diaphragm walls constructed in sequence exists, deformation cannot be carried out through steel plate welding in the settlement process, and leaking stoppage is difficult; and cement and rib welding not only can meet theimpact force of water flow, but also can meet the deformation problem.
Description
technical field [0001] The invention relates to the technical field of underground diaphragm wall construction, in particular to an underground diaphragm wall leak plugging device and method. Background technique [0002] With the development of the economy and the acceleration of infrastructure construction, the foundation pit enclosure structure of the underground diaphragm wall is becoming more and more common in subway construction and deep foundation pit construction. During the excavation process of the maintenance structure construction of the underground diaphragm wall, the prevention of leakage and piping And emergency treatment is very critical, if it is not handled in time, it will lead to the following problems: 1) Leakage of foundation pit: hanging water dripping water stains, common quality problems, affecting the image of the facade. 2) Piping in the foundation pit: the sand, cement and soil will fill the foundation pit, bury people and machinery, and the risk...
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IPC IPC(8): E02D17/04E02D29/16
CPCE02D17/04E02D29/16
Inventor 翟长明乔兆宇
Owner 浙江土工岩土科技有限公司