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Crushed zone anti-blocking plug, slurry stopping system for preventing out-hole slurry returning and slurry stopping method

An anti-clogging and broken zone technology, applied in the field of geotechnical engineering grouting, can solve the problems of speeding up the construction rate and reducing the cost of the grouting project, and achieves the effects of accelerating the construction rate, reducing the cost and improving the grouting efficiency.

Active Publication Date: 2020-04-10
湖南楚湘矿山工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of grouting on the ground caused by grouting in broken strata, bonding of broken rock water bags and recovery of grouting system, speeds up the construction speed, and reduces the cost of grouting project

Method used

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  • Crushed zone anti-blocking plug, slurry stopping system for preventing out-hole slurry returning and slurry stopping method
  • Crushed zone anti-blocking plug, slurry stopping system for preventing out-hole slurry returning and slurry stopping method
  • Crushed zone anti-blocking plug, slurry stopping system for preventing out-hole slurry returning and slurry stopping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0087] According to a second embodiment of the present invention, there is provided a method for stopping slurry using the system described in the first embodiment, the method comprising the following steps:

[0088] 1) Install the grout stop system: firstly open the grout hole on the broken belt, then put the grout stop rubber tube 1 together with the grout channel 3 into the grout hole, and fix the casing device 5 outside the grout hole .

[0089] 2) Capsule anti-slurry measures: the ground control pump 9 injects water into the rubber cylinder cavity 101 of the grout-stopping rubber cylinder 1 through the water injection pipe 7 to make the rubber cylinder cavity 101 expand, thereby making the outer wall of the grout-stopping rubber cylinder 1 closely adhere to the on the inside of the grout hole.

[0090] 3) Horizontal drilling: close the water injection pipe 7, open the second valve 302 of the grouting channel 3, the ground control pump 9 carries out high-pressure water in...

Embodiment 1

[0094] Such as figure 1 As shown, a slurry stop system that prevents clogging of the broken belt and prevents return of slurry outside the hole. The system includes: a grout-stopping rubber cylinder 1 , a drilling device 2 , a grouting channel 3 , a grouting device 4 , a casing device 5 , a grouting pipe 6 and a water injection pipe 7 . Wherein, the upper end of the grout-stop rubber cylinder 1 is provided with a casing device 5 . A grouting channel 3 is provided inside the grout-stopping rubber tube 1 , and the grouting channel 3 runs through the entire inner cavity of the grout-stopping rubber tube 1 and extends to the outside of the lower end of the grout-stopping rubber tube 1 . The grouting pipe 6 communicates with the grouting channel 3 . The water injection pipe 7 communicates with the grout-stopping rubber cylinder 1 .

Embodiment 2

[0096] Repeat Example 1, such as figure 2 and image 3 As shown, the inner chamber of the grout-stopping rubber cylinder 1 constitutes a rubber cylinder cavity 101, and in the rubber cylinder cavity 101, the drilling device 2 is sleeved on the outside of the lower part of the grouting channel 3 and connected with the grouting channel 3 phases are connected. The grouting device 4 is sleeved on the outside of the middle part of the grouting channel 3 and communicated with the grouting channel 3 .

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Abstract

The invention discloses a crushed zone anti-blocking plug and a slurry stopping system for preventing out-hole slurry returning. The slurry stopping system comprises a slurry stopping rubber barrel, adrilling device, a slurry injection channel, a barrel protection device, a slurry injection pipe and a water injection pipe. The barrel protection device is arranged at the upper end of the slurry stopping rubber barrel. The slurry injection channel is arranged in the slurry stopping rubber barrel, the slurry injection channel penetrates through an inner cavity of the whole slurry stopping rubberbarrel and extends to the outside of the lower end of the slurry stopping rubber barrel. The slurry injection pipe communicates with the slurry injection channel. The water injection pipe communicates with the slurry stopping rubber barrel. According to the slurry stopping system, an underground slurry soil stone body horizontal baffle can be formed near the depth of the slurry injection channel,the problems that under the condition that the stratum is crushed, slurry returns out of a ground surface hole, and the barrel wall of the slurry stopping rubber barrel and a crushed rock wall are inpoor contact are solved, upper end falling stone is prevented from blocking a slurry injection hole through a semi-rigid protection barrel, and the problem that a slurry stopping plug is hard to recycle is solved.

Description

technical field [0001] The invention relates to a grouting hole plugging technology, in particular to a grouting stop system and a grouting method for preventing blockage of a broken zone and preventing grout from returning outside the hole, and belongs to the technical field of grouting in geotechnical engineering. Background technique [0002] In foundation treatment, curtain water stop and other projects, grouting is usually used to improve the physical and mechanical properties of rock and soil to meet engineering needs. During the grouting process, the effective sealing of the grout stopper to the borehole can prevent the grout from overflowing, and can also realize the uniform injection of grout into the soil, improve the strength of the rock and soil, reduce the compressibility, improve the impermeability and enhance the stability. [0003] There are mainly two kinds of stoppers commonly used at present: mechanical type and hydraulic expansion type. The hydraulic exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/12E02D19/18
CPCE02D3/12E02D19/18
Inventor 陈宾曾浩哲赵立权周鑫廷李永晴粟欣周雄王沁钰
Owner 湖南楚湘矿山工程有限公司
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