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Slip casting lattice pipe with double plug and construction process

A technology of grouting flower tube and double plug, which is applied in the direction of foundation structure engineering, soil protection, sheet pile wall, etc., can solve the problems of inflexible control of grouting range and non-concentrated grouting stress, etc., and achieve the concentration of grouting pressure , to ensure the effect of soil strength

Inactive Publication Date: 2004-03-31
北京市城市建设工程研究院
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a double-plug grouting flower tube and construction technology, which solves the problem that the existing grouting device and technology can only adopt the backward grouting method, the control of the grouting range is not flexible enough, and the grouting stress is not concentrated technical problem

Method used

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  • Slip casting lattice pipe with double plug and construction process
  • Slip casting lattice pipe with double plug and construction process
  • Slip casting lattice pipe with double plug and construction process

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Embodiment Construction

[0026] The embodiment of the double embolism grouting flower pipe is for example figure 1 As shown: the pipe body of the grouting flower tube 3 is cylindrical, the pipe head is conical, the pipe wall is pierced with a grouting hole 10, and there is a check valve 13 on the grouting hole, and the grouting flower pipe 3 is concentric in the body A grouting united core body mainly composed of a grouting core pipe, front and rear rubber grout stoppers, gaskets, connecting pipes, jacking pipes and jacking nuts is inserted.

[0027] The structure of its grouting joint core is as follows: figure 2 As shown: the front section of the grouting core pipe 4 is pierced with evenly distributed grout holes 9, and the two ends of the pipe section pierced with the grout holes are tightly hooped with two sleeve-shaped rubber grout stoppers 5 and 8, of which the front rubber grout stoppers The front end of the slurry stopper 5 is fixed with a washer 7, and a connecting pipe 6 with a pipe wall a...

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PUM

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Abstract

A double plug slip casting flower tube and construction process thereof, wherein the tube body of the slip casting flower tube is in cylindrical shape, the tube tip is conical, a slip casting hole isarranged on the tube wall,an one-way valve is arranged on the slip casting hole, a slip casting combination core member is inserted concentrically into the flower tube member, which mainly comprises slip casting core tube, front and rear rubber grout stopping plug, washer, connection pipe, top pipe and top pipe screw cap. The invention solves the problems existed in the conventional slip casting devices, such as, only backward type slip casting processes can be used, the slip casting scope control is not flexible, and the slip casting stress is not centralized.

Description

technical field [0001] The invention relates to a ground treatment device and a process, in particular to a ground treatment grouting device and a process. Background technique [0002] The existing ground treatment grouting device has the following two types: [0003] Ordinary grouting flower tube: After the drill hole is formed, pull out the drill pipe and insert a grouting flower tube with many small holes at one end, and the grout will be evenly dispersed into the formation through the grouting small holes. Grouting flower pipes usually use 36 or 42 steel pipes, the joints are flat, and the end is a conical head. The diameter of the bottom surface of the cone head is 1-2mm larger than the steel pipe. The length is about 1m. In order to prevent the hole from being blocked, sometimes a rubber ring is placed on the hole to act as a one-way valve. Problems existing in ordinary flower tubes: without the control function of the core tube, the flower tube is the grout flow...

Claims

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Application Information

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IPC IPC(8): E02D3/12E02D5/46E02D15/04
Inventor 张忠坤郭红梅李延川肖专文
Owner 北京市城市建设工程研究院
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