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Deep foundation pit confined water inrushing pressure reduction and water control structure

A technology for confined water and deep foundation pits, which is applied in infrastructure engineering, excavation, construction, etc., can solve problems such as difficult treatment of foundation pit inrush, and achieve the effect of good water quality and obvious water control effect.

Pending Publication Date: 2018-07-13
ZHEJIANG QIAOXING CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the accidents of deep foundation pit engineering, the accidents caused by the inrush of confined water at the bottom account for a large part. It is difficult to deal with the inrush of foundation pit, and improper handling will cause serious consequences

Method used

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  • Deep foundation pit confined water inrushing pressure reduction and water control structure

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Embodiment

[0015] Embodiment: A deep foundation pit pressurized water surge decompression and water control structure, including a wellbore opened vertically below the surface, and a well pipe 1 is arranged in the wellbore, and the middle, upper and lower parts of the well pipe 1 are steel filters. The pipe 2 and the bottom of the well pipe 1 are also filled with a filter bag 3, and the bottom opening of the well pipe 1 is also provided with a water filter pad 4, and the well pipe 1 is also provided with a submersible pump 5, which includes a drainage pipe 6. The drainage pipe 6 extends to the top opening of the well pipe 1 .

[0016] The outside of the middle and upper part of the well pipe 1 is also provided with a horizontal filter pipe 7. The horizontal filter pipe 7 is L-shaped and includes a horizontal end and a vertical end. On one side, the vertical end of the horizontal filter pipe 7 extends out of the ground and is connected with a vacuum pump 8 .

[0017] The horizontal end o...

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Abstract

The invention provides a deep foundation pit confined water inrushing pressure reduction and water control structure. The deep foundation pit confined water inrushing pressure reduction and water control structure comprises a wellhole vertically formed under the ground. A well casing is arranged in the wellhole. Steel filter tubes are arranged on the upper middle portion and the lower portion of the well casing correspondingly. The bottom of the well casing is filled with filter material bags. A water filtration cushion block is arranged on the outer side of a bottom opening of the well casing. A submersible pump is arranged in the well casing. The submersible pump comprises a drain pipe. The drain pipe extends to a top opening of the well casing. According to the deep foundation pit confined water inrushing pressure reduction and water control structure, the pressure reduction well casing is provided with the upper steel filter tube and the lower filter tube, the combined drainage method of deep-layer drainage of the pressure reduction well casing and shallow-layer drainage of the horizontal filter tube is adopted, and high pressure and large-water-flow confined water inrushing ofa deep foundation pit can be stopped in short time. Compared with a traditional method, the deep foundation pit confined water inrushing pressure reduction and water control structure has the advantages that the water control effect is obvious, the water quality is good, no mud and sand are carried out, and no water inrushing hidden danger occurs again.

Description

Technical field: [0001] The invention relates to the field of construction engineering devices, in particular to a deep foundation pit pressurized water surge decompression and water control structure. Background technique: [0002] In the accidents of deep foundation pit engineering, the accidents caused by the inrush of confined water at the bottom account for a large part. It is difficult to deal with the inrush of foundation pit, and improper handling will cause serious consequences. Invention content: [0003] In order to solve the above technical problems, the present invention will adopt the following technical solutions: [0004] The deep foundation pit pressurized water inrush decompression and water control structure includes a wellbore opened vertically below the surface, and a well pipe is arranged in the wellbore. The middle, upper and lower parts of the well pipe are steel filter pipes. The bottom is also filled with a filter bag, the bottom opening of the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D19/20
CPCE02D17/02E02D19/20
Inventor 张士杰吴国杰杨奇陈敏张思懿宋霞萍
Owner ZHEJIANG QIAOXING CONSTR GRP
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