Plugging method for pressure-bearing dewatering well of high-water-level basement

A technology for dewatering wells and basements, applied in construction, infrastructure engineering, etc., can solve the problems of difficult installation of blind plates, unsatisfactory sealing effect, etc., and achieve the effect of ensuring welding quality

Pending Publication Date: 2022-04-15
成都华阳建筑股份有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned related technologies, the inventor believes that when the groundwater pressure is high, it is difficult to install the blind plate, and after the blind plate is installed, there will still be water jetting between the flange plate and the blind plate, resulting in an unsatisfactory sealing effect

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  • Plugging method for pressure-bearing dewatering well of high-water-level basement
  • Plugging method for pressure-bearing dewatering well of high-water-level basement
  • Plugging method for pressure-bearing dewatering well of high-water-level basement

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Embodiment Construction

[0041] The following is attached Figure 1-3 The application is described in further detail.

[0042] The embodiment of this application discloses a method for sealing water wells under pressure in high-water level basements. figure 1 , 2 , including the following steps:

[0043] Installation steps of water-stop steel casing: make a suitable water-stop steel casing 1 according to the size of the dewatering well, lower the water-stop steel casing 1 into the dewatering well, and weld the flange on the top of the water-stop steel casing 1 in advance 2, so that the flange 2 is outside the dewatering well;

[0044]Blind plate installation steps: glue a circle of waterproof rubber ring 4 matching the inner pipe diameter of water-stop steel casing 1 in the center of the plate surface of blind plate 3, and then place the plate surface inside the waterproof rubber ring 4 on the blind plate 3 Install an abutting device 5 on it, align the waterproof rubber ring 4 with the water-stop ...

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Abstract

The invention relates to a plugging method for a pressure-bearing dewatering well of a high-water-level basement. The plugging method comprises the following steps that a water stop steel sleeve is installed; mounting a blind plate; processing a blind plate; a grouting step; in the dismantling step, bolts between the flange plate and the blind plate are dismantled, after the blind plate is separated from the waterproof rubber ring and the abutting device, the blind plate is directly dismantled, and the waterproof rubber ring and the abutting device are left in a plug of the water stop steel sleeve; checking: checking whether water seepage occurs in the water stop steel sleeve after the blind plate is removed, if no leakage occurs, continuing the next step, and if water seepage occurs, mounting the blind plate and grouting again; and a permanent plugging plate welding step: welding a permanent plugging plate in the water stop steel sleeve. The anti-seepage effect can be improved when the dewatering well is blocked.

Description

technical field [0001] The present application relates to the field of plugging technology for dewatering wells, in particular to a plugging method for pressurized dewatering wells in basements with high water levels. Background technique [0002] For traditional dewatering well plugging, the flange is welded in advance inside the water-stop steel casing. After the main structure is capped, the settlement is stable, and the post-casting belt is completed, the downpipe is taken out to stop the dewatering, and a blind plate is installed on the flange for sealing. Blocking. [0003] In view of the above-mentioned related technologies, the inventor believes that when the groundwater pressure is high, it is difficult to install the blind plate, and after the blind plate is installed, there will still be water jetting between the flange plate and the blind plate, resulting in an unsatisfactory sealing effect . Contents of the invention [0004] In order to improve the plugging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/10E02D19/16E02D15/00
Inventor 张石民陈俊弟杨楠刘宗生岳欢
Owner 成都华阳建筑股份有限公司
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