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A deep foundation pit dewatering construction method

A construction method and technology of deep foundation pits, which can be used in infrastructure engineering, construction, pump components, etc., and can solve problems such as inconvenient transportation and damage to pumps

Active Publication Date: 2021-09-14
CITIC GUOAN CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the process of putting the water pump into the deep well, the water pump easily collides with the inner wall of the deep well, causing damage to the water pump. In order to avoid collision with the well wall when the water pump is placed, the drainage pipe is usually made of hard The steel pipe makes it difficult to collide with the inner wall of the deep well when the pump is placed, but it is not convenient for turnover transportation

Method used

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  • A deep foundation pit dewatering construction method
  • A deep foundation pit dewatering construction method
  • A deep foundation pit dewatering construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Such as Figure 1 to Figure 5 Shown, a kind of deep foundation pit dewatering construction method of the present invention comprises the following steps:

[0043] 1) Connect the second steel pipe 12 of the suction pipe to the second positioning ring 16, then connect the cross bar 9 to the second positioning ring 16, connect the pre-embedded rod 14 to the cross bar 9 through threads, and connect the pre-embedded rod 14 fixed around the deep well 1;

[0044] 2) Adjust the position of the support plate 6 according to the diameter of the wellhead of the deep well 1, so that the support plate 6 is tightly pressed against the inner wall of the wellhead;

[0045] 3) Put the water pump 2 into the deep well 1, when the water pump 2 is put into the deep well 1, the anti-collision block 4 protects the water pump 2;

[0046] 4) Connect the horizontal plate 13 to the pre-embedded rod 14 through the fixing ring 8, and connect the second steel pipe 12 of the suction pipe to the first ...

Embodiment 2

[0053] On the basis of Embodiment 1, the cross section of the support plate 6 is an arc structure.

Embodiment 3

[0055] On the basis of Embodiment 1, the pumping pipe includes a first steel pipe 7, a flexible pipe 5 and a second steel pipe 12, and the two ends of the flexible pipe 5 are respectively connected with the first steel pipe 7 and the second steel pipe 12, and the buffer 3 is located on the outer wall of the first steel pipe 7, and the second steel pipe 12 is located in the second positioning ring 16. The outer wall of the second positioning ring 16 is also provided with two second fixing rods 18, the second fixing rods 18 are located on both sides of the axis of the second positioning ring 16, and the second fixing rods 18 are located below the cross bar 9 , the crossbar 9 is horizontally connected to the second positioning ring 16 through threads, and the second fixing rod 18 can fix the second steel pipe 12 in the second positioning ring 16 .

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Abstract

The invention discloses a construction method for dewatering a deep foundation pit, which includes a water pump and a second positioning ring with a circular ring structure. A plurality of cross bars are arranged on the outer wall of the second positioning ring, and each of the cross bars is A support plate is provided, and the support plate can move horizontally on the cross bar, and the support plate is distributed at the wellhead in an annular array; a suction pipe is arranged in the second positioning ring, and the bottom end of the suction pipe is connected to the The suction pump is connected, the side wall of the suction pipe is also provided with a number of buffers, the buffers are distributed in an annular array on the side wall of the suction pipe, one end of the buffer is connected to the suction pipe, and the other end is equipped with Anti-collision blocks. The invention prevents the water pump from colliding with the inner wall of the deep well when the water pump is put into the deep well, thereby improving the service life of the water pump.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a deep foundation pit dewatering construction method. Background technique [0002] Foundation pit dewatering means that when the foundation pit is excavated, the groundwater level is higher than the excavation bottom, and the groundwater will continue to seep into the pit. Dewatering work due to pit bottom piping and foundation bearing capacity decline. When dewatering the foundation pit, usually a deep well is excavated first, then a water pump is put into the deep well, and the groundwater in the well is pumped out by the water pump, so as to achieve the purpose of foundation pit dewatering. At present, in the process of putting the water pump into the deep well, the water pump easily collides with the inner wall of the deep well, causing damage to the water pump. In order to avoid collision with the well wall when the water pump is placed, the drainage pipe is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/10F04B53/00
CPCE02D19/10F04B53/00
Inventor 程晓波薛小明黄建宝喻林忠刘杰徐新华
Owner CITIC GUOAN CONSTR GRP CO LTD