Combined seepage interception wall structure capable of running through complicated strong permeable bed and construction method

Abstract

The invention discloses a combined seepage interception wall structure capable of running through a complicated strong permeable bed and a construction method. The wall structure is characterized in that the wall structure is formed by combining an inner wall, a middle wall and an outer wall from outer side to inner sides in sequence, wherein the inner wall and the outer wall are formed by triaxial mixing piles; and the middle wall is formed by a high pressure rotary spray pile. According to the combined seepage interception wall structure, the wall structure is formed by combining three rows of piles; the structure solves problems of bad wall quality in a normal construction and reduces difficulties in an extreme construction; generally, the wall structure is more economical and safer than that of extreme seepage control measures; and the invention further discloses a construction method for the combined seepage interception wall structure capable of running through the complicated strong permeable bed.

Description

technical field [0001] The invention relates to a seepage control vertical cut-off wall structure and construction method for water conservancy projects and civil engineering, in particular to a strong water-permeable, two-way water barrier formed by complex components such as riprap and geotextile filling tube bags suitable for riverside (sea) waters. The combined seepage cutoff wall structure and construction method for vertical cutoff and antiseepage of reservoir dams required for water retention through complex and highly permeable layers. Background technique [0002] The waters near the river (sea) are closed to build reservoirs, and the dikes (dams) are often two-way water retaining, often encountering complex interlayers with strong water permeability. The wall-forming construction of the process is difficult and the wall-forming quality is poor. In the later stage, under the operating condition of high water head difference, the risk of leakage damage is high and th...

AI Technical Summary

Problems solved by technology

[0002] The waters near the river (sea) are closed to build reservoirs, and the dikes (dams) are often two-way water retaining, often encountering complex interlayers with strong water permeability. The wall construction of the process is difficult and the quality of the wall is poor. In the later stage, under the operating conditions of high water head difference, the risk of leakage damage is high and the harm is great. Some extreme measures often have to be taken, and the cost is very high.

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