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Rapid construction method for prevention seepage integrating vibrating-jetting with controlled cement grouting

A technology of cement grouting and construction method, applied in water conservancy engineering, infrastructure engineering, marine engineering and other directions, can solve the problems of difficult to guarantee construction quality, large equipment investment, long construction period, etc., to reduce construction costs, speed up construction progress, The effect of reducing the cost per item

Inactive Publication Date: 2007-10-31
中国安能集团第三工程局有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Other anti-seepage construction technologies such as underground diaphragm wall and underpinning are not suitable for construction when there is underground moving water, and there are disadvantages such as huge investment, long construction period, large investment in equipment, and difficulty in guaranteeing construction quality.

Method used

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  • Rapid construction method for prevention seepage integrating vibrating-jetting with controlled cement grouting
  • Rapid construction method for prevention seepage integrating vibrating-jetting with controlled cement grouting

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Embodiment Construction

[0023] The construction steps of the present invention are as follows:

[0024] a. Use a drilling rig to make holes at equal intervals along the center line of the anti-seepage wall to be built, and form an anti-seepage body with a single row of holes, the hole distance is 1-1.25m, and the vibro-jet holes and control cement grouting holes are located in the above-mentioned single row of holes In the form of one-by-one interval arrangement (that is, the vibro-jet holes are drilled first);

[0025] b. According to the anti-seepage bottom line determined by the design, first perform high-pressure jet grouting on all the vibro-jetting holes; form a high-pressure jet grouting body at the position of the vibrating jet holes;

[0026] c. After the construction of the vibrating spray holes on both sides is completed, then drill holes in the controlled cement grouting holes, and then pour the admixture into the concrete according to a specific ratio (the ratio of cement slurry to quick...

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Abstract

The invention relates to the soft base anti-seepage quick construct method of the vibrating spraying and controlling cement grouting integration, belongs to the anti-seepage body construct field, the steps are as follows, a. The driller is used to drill equally-spaced in the stratum, and the anti-seepage body is formed in a single row, the hole distance is 1-1. 25m, and the vibrating spraying hole and the controlling cement grouting hole is interval arranged. b. The vibrating spraying hole is high pressure injected with cement grouting. c. After the vibrating holes on the two sides are constructed, the base hole is to be dragged, water pumped and controlled injected with cement grouting. The invention could effectively save the single construct period, to decrease the single construct cost, to decrease the single construct investment, the construct effect is good.

Description

technical field [0001] The invention relates to a foundation anti-seepage treatment technology, in particular to a shallow (within 30m) soft foundation anti-seepage treatment technology in projects such as water conservancy, hydropower, industrial and civil construction deep foundation pits, and ports. Background technique [0002] At present, there is no mature rapid construction method for anti-seepage treatment of shallow (within 30m) soft foundation. [0003] When using a single high-spray grouting (methods include single-pipe method, double-pipe method, three-pipe method and new three-pipe method, etc.) Above) when the boulders are concentrated, it is difficult to form a wall, and the anti-seepage effect of the contact zone with the bedrock is poor, so it is not suitable for construction when there is underground dynamic water. [0004] Controlled cement grouting technology (drilling first, then pouring cement slurry containing admixtures accord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/00E02B3/16
Inventor 刘俊君詹登民张仕超
Owner 中国安能集团第三工程局有限公司
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