Foundation pit dewatering and contaminated site remediation coupled foundation pit dewatering cleaning system

Abstract

The invention discloses a foundation pit dewatering and contaminated site remediation coupled foundation pit dewatering cleaning system. The system is used for achieving foundation pit dewatering and contaminated site remediation in the control range site. The control range site comprises a first water-resisting layer (1601), a water containing layer (17) and a second water-resisting layer (1602) from top to bottom; the foundation pit dewatering cleaning system comprises equipment components of a reactive infiltration ditch (5), a foundation pit curtain (2), a pumping well, an observation well (4) and the like; through large-scale water pumping and draining of foundation pit dewatering, the cleaning effect on contaminant in the control range site can be effectively achieved; and compared with the prior art, the foundation pit dewatering and contaminated site remediation coupled foundation pit dewatering cleaning system is strong, foundation pit dewatering and a permeable reactive barrier technology in site remediation are coupled into a whole efficiently, long-term monitoring and maintenance of environment quality of the remediated engineering site can be achieved, secondary pollutions of the site can be remediated again, the total cost of the engineering can be efficiently reduced, and the total period of the engineering is shortened.

Description

technical field [0001] The invention relates to a coupling technology of foundation pit dewatering and site restoration, in particular to a clean foundation pit dewatering system coupled with foundation pit dewatering and contaminated site remediation. Background technique [0002] In the process of rapid social and economic development in our country, the problem of water and soil environmental pollution needs to be solved urgently, and the government and the public are increasingly aware of the seriousness of water and soil pollution in our country and the urgency of water and soil restoration. [0003] In terms of soil and water restoration at home and abroad, many methods such as physical restoration, chemical restoration, and biological restoration have been developed. Foundation pit dewatering is an engineering measure widely adopted to prevent water and mud inrush accidents during the construction of medium-to-large foundation pits in the soil layer. It has made great...

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Problems solved by technology

The aquifer of the project site is usually buried deep, and it is generally difficult for personnel to directly contact it in a large area, which makes it very difficult to control the water and soil pollution of the aquifer, especially the confined aquifer

And at present, in the process of project construction, site water and soil treatment and foundation pit dewatering are

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