Seepage prevention method and structure for waste percolate collecting pool

Abstract

The invention discloses a seepage prevention method and structure for a waste percolate collecting pool. According to the method, an HDPE seepage prevention film (4) and geotechnical cloth (3) are combined, and the geotechnical cloth (3) is laid between the HDPE seepage prevention film (4) and the inner wall of the pool (1); at least one anchoring press strip (5) surrounds the inner side wall of the pool (1) by one circle, and the HDPE seepage prevention film (4) and the geotechnical cloth (3) are pressed on the inner side wall of the pool (1) tightly. The geotechnical cloth (3) and the HDPE seepage prevention film (4) are adopted to form a composite seepage prevention system, the weight of the HDPE film and the weight of the geotechnical cloth are divided into two parts through the anchoring press strip, and the too large anchoring force born by an anchoring groove and the too large tensile stress of the HDPE film are reduced.

Description

technical field [0001] The invention relates to a film-laying anti-seepage method and structure of a vertical wall concrete pool for collecting waste leachate, belonging to the technical fields of chemical industry and municipal administration. Background technique [0002] Due to the limitation of terrain and geological conditions, the pools for collecting Class II general industrial waste or landfill leachate often need to be excavated and built into reinforced concrete structures, and the concrete walls are vertical (or the slope of the walls is very steep). In order to make the pool To reach a certain storage capacity, the pool wall is often high (greater than 10m). Class II general industrial waste or landfill leachate is often highly polluting and requires anti-seepage treatment for the pool. If the anti-seepage HDPE membrane is directly laid on the concrete wall of the pool, it is only done through the anchoring ditch. For anchoring, the anchoring force of the anchor...

AI Technical Summary

Problems solved by technology

Class II general industrial waste or landfill leachate is often highly polluting, and requires anti-seepage treatment for the pool. If the anti-seepage HDPE membrane is directly laid on the concrete wall of the pool, it is only done through the anchoring ditch. Anchoring, there will be insufficient anchoring force in the anchor groove or the HDPE film will tear due to the fact that the laying length is too long (determined by the height of the pool wall) and the tensile stress is greater than the allowable tensile stress under the action of its own weight.

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