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Precipitation construction method

A construction method and technology of downwater pipes, which are applied in infrastructure engineering, construction, etc., can solve problems such as low precipitation efficiency and non-reusable downwater pipes, and achieve the goal of increasing water filtration area, improving precipitation efficiency, and reducing precipitation construction costs Effect

Inactive Publication Date: 2019-12-03
CHINA MCC20 GRP CORP
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  • Claims
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Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a kind of dewatering construction method, which has solved the technical problems of low dewatering efficiency and non-reusable downwater pipes in the existing dewatering construction

Method used

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Embodiment Construction

[0034] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0035] The present invention provides a kind of precipitation construction method, comprises the following steps:

[0036] Step S1, excavating a dewatering well.

[0037] According to the design drawing of the dewatering well, measure and set out the line at the construction site to determine the drilling position of the dewatering well 8; use the drilling machine to drill the dewatering well 8 conforming to the design depth and diameter at the determined drilling position.

[0038] Step S2, setting a dewatering well filter device in the dewatering well.

[0039] Wherein, the described precipitation well filtering device is set to be made up of a plurality of downfal...

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Abstract

The invention relates to a precipitation construction method. The method includes the following steps that S1, a precipitation well is dug; S2, a precipitation well filtering device is arranged in theprecipitation well and comprises multiple downcomers connected in an end-to-end manner sequentially, every two adjacent downcomers are connected detachably, multiple water passing holes are formed inthe pipe walls of the downcomers, the peripheral walls of the downcomers are coated with first filtering nets, and a bottom filtering structure is arranged at the bottom end of the downcomer at the bottom in the precipitation well; S3, a submersible pump is arranged at the bottom in the precipitation well filtering device, and a drain pipe of the submersible pump extends out of the precipitationwell; S4, the submersible pump is started to perform precipitation on the precipitation well. According to the precipitation construction method, the reusable precipitation well filtering device is adopted, so that the precipitation construction cost is reduced; and the reusable precipitation well filtering device can perform filtration precipitation at the bottom and on the pipe walls of the downcomers simultaneously, so that the precipitation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of foundation pit dewatering, and more particularly, relates to a dewatering construction method. Background technique [0002] Underground engineering construction in water-bearing strata often requires engineering precipitation first. During on-site dewatering construction, multiple dewatering wells with a diameter of 400-600 mm are often installed on the construction site. Plastic bellows are installed in the dewatering wells to use the bottom of the well to infiltrate groundwater. Submersible pumps are used to pump out the silt in the well and the groundwater in the well. The plastic corrugated pipe in this traditional dewatering construction method cannot be recycled and reused after use. The plastic corrugated pipe is easy to be damaged during the installation process, and the diameter of the dewatering well is large. Only relying on the bottom to infiltrate the groundwater is slow, and the dewatering ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/06E02D19/10
CPCE02D19/06E02D19/10
Inventor 张书峰金辽东张婷
Owner CHINA MCC20 GRP CORP
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