Advanced Forecast and Advance Treatment of Foundation Pit Leakage
A technology of advanced forecasting and foundation pit, which is applied in the direction of foundation structure test, foundation structure engineering, construction, etc., and can solve problems such as failure to solve detection application problems well
Active Publication Date: 2018-05-29
天津建岩岩土工程有限公司
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- Description
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- Application Information
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Problems solved by technology
At present, there is still a lack of equipment for foundation pit leakage detection before foundation pit excavation. Our company has summarized some methods of foundation pit enclosure monitoring before and found that none of them can solve the actual detection application problems well.
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[0018] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. Such as Figure 1-Figure 3 As shown, a method for advanced prediction and advanced treatment of foundation pit leakage, including the following steps:
[0019] Step 1. Drill an inner water level well 1 at the inner connection position of the underground diaphragm wall or water-stop curtain, and drill an outer water level well 4 at the outer connection position of the underground diaphragm wall 2 or water-stop curtain 3;
[0020] Step 2: Install the pipe material 5 into the inner water level well and the outer water level well respectively. The pipe material has a through hole, and wraps the sponge and the geotextile outside the pipe material in sequence; Not to be polluted, the geotextile plays the role of filtering water impurities. After the pipe is put into the inner water level well and the outer wat...
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The invention relates to the technical field of water resistance and imperviousness of a building, in particular to an advanced prediction and renovation method for foundation pit seepage. The method includes the following steps of digging an inner water level well in the internal connecting position of an underground diaphragm wall or a waterproof curtain, and digging an outer water level well in the external connecting position of the underground diaphragm wall or the waterproof curtain; installing pipes or permeable corrugated pipes into the corresponding inner water level well and outer water level well, forming through holes in the pipes or the permeable corrugated pipes, and wrapping the pipes or the permeable corrugated pipes with sponge or geotechnical cloth in sequence; inputting environmental-friendly colored pigment into the pipes or the permeable corrugated pipes of the outer water level well; filling a foundation pit with water, observing the water quality of the inner water level well and knowing the seepage position of the inner water level well if the inner water level well has the same colored pigment as that of the outer water level well. The advanced prediction and renovation method for the foundation pit seepage can locate the seepage position accurately by observing the water color in the inner water level well.
Description
technical field [0001] The invention relates to the technical field of waterproofing and anti-seepage in the field of construction, in particular to an advanced prediction and advanced treatment method for foundation pit leakage. Background technique [0002] Foundation pit leakage is a major problem in soft soil foundations in China. Due to the poor quality of concrete or unqualified construction, the ground connection wall itself has cracks and causes leakage in the foundation pit. Or due to technical reasons in the construction process, there are a lot of mud or other deposits in the wall or joints of the ground connection wall. The stability of the body is destroyed, and leakage channels are formed at the walls or joints of the ground connection wall. In severe cases, other buildings around the construction site will have a large settlement, and the foundation pit itself will also undergo a large displacement and deformation. The current urban underground buildings ar...
Claims
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IPC IPC(8): E02D33/00E02D19/06
CPCE02D19/06E02D33/00
Inventor 林威
Owner 天津建岩岩土工程有限公司