Underground diaphragm wall joint water seepage treatment method

Abstract

The invention relates to the technical field of underground diaphragm wall repairing, and provides an underground diaphragm wall joint water seepage treatment method. A first containing cavity and a second containing cavity are formed in a grouting pipe, so that cement and water glass can be stored in the grouting pipe, a mixing assembly and an opening and closing assembly are arranged in the grouting pipe, the cement and the water glass in the first containing cavity and the second containing cavity are mixed through the mixing assembly, and a grouting body is formed; when the grouting body passes through the opening and closing assembly, the grouting pipe is communicated with the grout outlet pipe, so that the grouting body can flow into the grout outlet pipe and flow into the gap through the grout outlet hole; according to the invention, the solidification time of the grouting body does not need to be prolonged by controlling the proportion of cement and water glass, and the effect that the grouting body blocks the water seepage gap of the underground diaphragm wall in time is achieved.

Description

technical field [0001] The present application relates to the technical field of water seepage repair of underground diaphragm walls, in particular to a method for treating water seepage in joints of underground diaphragm walls. Background technique [0002] When constructing underground buildings, in order to reduce the susceptibility to the impact of groundwater erosion during the later construction process, it is usually necessary to build water-stop structures such as underground diaphragm walls. The underground diaphragm wall is affected by the construction quality and other aspects during the construction process. There are usually some gaps at the joints. Grouting plugging. [0003] At present, the method of double-liquid grouting is often used to solve the problem of water leakage in the underground diaphragm wall. A fast-setting and high-strength grouting body (mainly composed of silica gel and calcium silicate gel) is produced by mixing cement with water glass an...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: after cement and water glass are mixed to form a grout, the solidification time is relatively fast, so the storage time of the grout is limited. The proportion of water glass and cement prolongs the solidification time of the grouting body, but it is also easy to cause the grouting body to fail to solidify in time after being injected into the gap, resulting in the untimely sealing of the seepage gap of the underground diaphragm wall. Therefore, there is room for improvement

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