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

A technology for foundation pits and sites, applied in infrastructure engineering, loose filter material filters, filter circuits, etc., can solve the problems of long-term maintenance of water and soil environment quality in underground aquifers, difficulties in water and soil pollution control, and extension of the total construction period of the project, etc. , to achieve the effect of ensuring long-term effectiveness, shortening the total construction period, and facilitating flexible replacement

Active Publication Date: 2016-08-10
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 currently regarded as two independent processes. Compared with foundation pits built in non-polluted soil layers, it is bound to prolong the total construction period of the project and increase the total cost of the project.
In addition, the long-term maintenance of the water and soil environment quality of the underground aquifer at the project site is also very difficult

Method used

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

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Embodiment

[0050] like Figure 1-2 As shown, a clean foundation pit dewatering system coupled with foundation pit dewatering engineering and contaminated site remediation engineering is used to realize foundation pit dewatering and contaminated site restoration within the control area. The control area includes the first water barrier from top to bottom Layer 1601, aquifer 17 and second water-resisting layer 1602, the main equipment components of the dewatering system for cleaning foundation pits include dewatering well 1, foundation pit curtain 2, depressurization well 3, observation well 4, active seepage ditch 5, active Percolation wall 11, filling bar layer 15, water pump 8, water pipe 7. The foundation pit curtain 2 is built in the site within the control area according to the construction requirements of the foundation pit project. Drain well 1, the structure is as follows image 3 As shown, generally the diameter of the borehole is 800mm, and the first steel pipe 901 with a diam...

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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...

Claims

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Application Information

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IPC IPC(8): E02D19/10B01D36/04
CPCB01D36/04B01D2101/02E02D19/10
Inventor 王建秀吴林波邓沿生宋东升张宇澄
Owner TONGJI UNIV
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