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

A construction method and strong permeable technology, which can be used in infrastructure engineering, water conservancy engineering, sheet pile walls, etc., can solve the problems of poor wall quality, high cost, and high risk of leakage damage, and can solve construction difficulties and construction safety. , to solve the effect of poor quality

Active Publication Date: 2012-08-15
SHANGHAI WATER ENG DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
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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

Method used

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

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] see figure 1 , the combined cut-off wall structure passing through the complex strong permeable layer shown in the figure is composed of an inner wall 10, an intermediate wall 20 and an outer wall 30 in sequence from the outside to the inside, and the inner wall 10 and the outer wall 30 are composed of three Axial stirring piles are used to form a wall, and the middle wall 30 is formed by high-pressure rotary jetting piles; the thickness of the middle wall is 0.5m.

[0018] The construction method of the combined cut-off wall structure passing through the complex strong permeable layer is composed of the following steps:

[0019] 1) Exterior wall construction

[0020] The external wall is made of three-axis mixing piles, and the three-axis mixing piles are laid out with φ850-600mm and re-stirred in the permeable interlayer range to ini...

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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...

Claims

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Application Information

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IPC IPC(8): E02B3/16E02D19/14E02D5/18E02D5/46
Inventor 李锐卢永金王路军欧阳礼捷
Owner SHANGHAI WATER ENG DESIGN & RES INST
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