A dewatering well plugging structure and construction method thereof
A technology for dewatering wells and water-stopping, which is used in infrastructure engineering, earth-moving drilling, sealing/sealing, etc., to achieve the effect of high bearing capacity, good sealing quality, and prevention of bottom leakage
Active Publication Date: 2021-11-23
NORTHEASTERN UNIV LIAONING
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Problems solved by technology
However, for dewatering wells with high water pressure and large water output, how to seal the wellhead has always been a construction problem, and there is no good solution yet
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[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0025] Such as Figure 1 to Figure 2 As shown, the present invention provides a plugging structure for a dewatering well, including a steel mesh 1, and the steel mesh 1 is horizontally fixedly assembled on the inner wall of the dewatering well. Specifically, the steel mesh 1 is welded with connectors around it, and the connectors are connected by bolts. Fixedly assembled on the inner wall of the dewatering well, the bottom of the steel mesh 1 is filled with a sealing material 2, the sealing material 2 is specifically a mixture, the upper surface of the s...
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A plugging structure for a dewatering well and a construction method thereof, comprising a steel mesh, the steel mesh is fixed horizontally on the inner wall of the dewatering well, the bottom of the steel mesh is filled with a sealing material, and the surface of the steel mesh is laid with a water-stop expansion strip, and The water-stop expansion rubber strip is fixedly connected with the steel mesh. The upper surface of the water-stop expansion rubber strip is provided with a pouring formwork, and the pouring formwork is fixedly connected with the side wall of the dewatering well. The top of the pouring formwork is poured with grout, and the top of the grouting material is level with the wellhead of the dewatering well. Qi, the top of the wellhead of the dewatering well is provided with an annular groove, and a water-stop strip is installed in the annular groove, and a cover plate is fixed above the wellhead of the dewatering well, and the cover plate is fixedly connected with the concrete of the wellhead of the dewatering well through fasteners; The plugging structure and construction method have the advantages of economical and practical, simple and easy, good plugging quality, prevention of bottom plate leakage, stable overall structure, high bearing capacity, and the highest bearing capacity can reach 800kN. The invention is mainly used to solve the problem of low water pressure Large wellhead plugging construction problems.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a plugging structure for a dewatering well and a construction method thereof. Background technique [0002] With the development and utilization of underground space, the excavation depth of underground engineering is getting deeper and deeper. Construction under the condition of high water level is easy to cause problems such as soil slippage, water leakage of support structure, and foundation pit instability. In order to ensure construction safety, it is necessary to take effective measures to reduce the groundwater level. The usual method is to arrange a certain number of precipitation wells in the floor of the building for precipitation treatment. However, for dewatering wells with high water pressure and large water output, how to seal the wellhead has always been a construction problem, and there is no good solution at present. Contents of the...
Claims
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IPC IPC(8): E21B33/13E02D19/10
Inventor 王述红姚骞孙文攀贾蓬孙子涵沙成满孙健李嘉祥
Owner NORTHEASTERN UNIV LIAONING