Grooving method for underground water pollution stop control

Abstract

The invention discloses a grooving method for underground water pollution stop control. The grooving method comprises the steps of: (S101) construction surveying and paying off; (S102) field leveling;(S103) drilling of all support steel plate piles into a rock layer; (S104) pavement of roadbed boxes at the upper parts of the support steel plate piles; (S105) mechanical grooving at the side partsof the support steel plate piles; (S106) installation of steel support frames at the grooved parts; (S107) lifting of the steel support frames; (S108) pavement of flexible permeation preventing materials in the grooved parts for filling; and (S109) drawing of the support steel plate piles. The grooving method has the following beneficial effects: in places with sudden pollution accidents, shorterconstruction period, narrow construction range or other special conditions, when the grooving pollution stop control can be performed in the places for the ecological environment pollution problem, the grooving can be performed under the precondition of not adopting a mud production system for wall protection by mud according to the steps of the method.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and more specifically, relates to a trough forming method for groundwater pollution prevention and control. Background technique [0002] The rapid economic development has brought about more and more serious environmental problems. The increasing pressure of national environmental protection supervision also shows that the country is paying more and more attention to environmental and ecological problems. In recent years, environmental pollution accidents have occurred frequently, involving petrochemicals, mines, garbage dumps, hazardous waste, etc. The scope and depth of pollution have become greater and greater, and the difficulty of governance has become more and more difficult. [0003] The technology used for the treatment of environmental pollution migration is the vertical curtain technology, which mainly includes the traditional underground impervious wall technology and the ne...

AI Technical Summary

Problems solved by technology

Traditional underground anti-seepage wall technology is gradually being eliminated due to low anti-seepage performance, poor corrosion resistance, poor deformation resistance and short service life. More and more projects at home and abroad adopt HDPE-bentonite composite anti-seepage technology

However, there are many polluted sites that have problems such as low construction efficiency of resistance control barriers, long construction period, limited guide wall construction, and large mud system footprint, which lead to increased project costs. For example, due to terrain constraints, the HDPE -Bentonite flexible composite anti-seepage can only be installed in the green belt that has been built. In the later stage, plants and trees in the green belt need to be replanted and the construction work area of ​​the green belt is narrow, so it is not suitable to be used as a guide wall

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