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Construction method of a dewatering well plugging structure

A construction method and technology for dewatering wells, which are applied in the field of geotechnical engineering to achieve the effects of high bearing capacity, prevention of floor leakage and good sealing quality

Active Publication Date: 2020-12-01
NORTHEASTERN UNIV LIAONING
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  • Description
  • Claims
  • Application Information

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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

Method used

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  • Construction method of a dewatering well plugging structure
  • Construction method of a dewatering well plugging structure
  • Construction method of a dewatering well plugging structure

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Embodiment Construction

[0023] 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.

[0024] Such as Figure 1 to Figure 4 As shown, the present invention provides a dewatering well plugging structure, including a cover plate 1, a first through hole 2 is opened in the center of the cover plate 1, and 48 fastener fixing holes 3 are opened in an array around the first through hole 2 , the concrete surface around the wellhead of the dewatering well is provided with 48 corresponding installation holes 4, and the fasteners pass through the fastener fixing holes 3 and are screwed with the installation holes 4 to realize the fixing of the cover ...

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Abstract

A construction method of a dewatering well plugging structure, which adopts a dewatering well plugging structure. The dewatering well plugging structure includes a cover plate, a first through hole is opened in the center of the cover plate, and a number of holes are opened around the first through hole. Fastener fixing hole, the bottom of the cover plate is fixedly equipped with a casing, the casing is coaxially arranged with the first through hole, an upper blocking steel plate is fixedly assembled inside the casing, and a second through hole is opened in the center of the upper blocking steel plate. A water pumping steel pipe is slidably assembled in the second through hole. A plurality of third through holes are provided around the second through hole. A bracket is slidably installed in a plurality of third through holes. A bottom sealing steel plate is fixedly installed at the bottom of the bracket. The water pumping steel pipe is provided with a valve. , the valve is located above the upper sealing steel plate; the sealing structure and construction method of the present invention have the advantages of economical and practical, simple and easy, good sealing quality, preventing bottom plate leakage, stable overall structure, and high load-bearing capacity. The highest load-bearing capacity can be Up to 800kN.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering, and in particular relates to a construction method for a plugging structure of a dewatering well. 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 inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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
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