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Fissure rock grouting reinforcement experimental instrument and experimental method thereof

A technology of grouting reinforcement and experimental instrument, which is applied in the field of grouting reinforcement of fractured rocks, can solve problems such as inconvenient operation and complex structure, and achieve the effect of convenient operation and simple structure

Inactive Publication Date: 2007-11-07
CHINA UNIV OF MINING & TECH (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are at least the following disadvantages in the above-mentioned prior art: the experimental slurry and the experimental rock block are respectively in different containers, the structure is complicated, and the operation is inconvenient

Method used

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  • Fissure rock grouting reinforcement experimental instrument and experimental method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The preferred embodiment of the experimental instrument for grouting reinforcement of fissure rocks according to the present invention is shown in Figure 1 , which includes a pressurized chamber and a grouting chamber, and a piston 1 is arranged between the pressurized chamber and the grouted chamber.

[0015] The pressurized chamber can be an oil cylinder, which is connected with an oil inlet 2, an oil outlet 4, an overflow valve 3 and a pressure gauge 9. A manual pump or an automatic pump can be used to pressurize the oil in the oil cylinder, and the piston 1 will transmit the pressure of the oil to the grouting slurry in the grouting cavity above it. The pressure gauge 9 is used to monitor the size of the grouting pressure, and the overflow valve 3 is used for overpressure protection.

[0016] An exhaust device is arranged in the grouting cavity, and the inner cavity of the exhaust device communicates with the outside of the grouting cavity. The specific exhaust dev...

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Abstract

The invention discloses a experimental device and the method to pour the plasm into the rock cranny including the pressure hollow, the plasm pouring hollow and the piston between two hollows. The releaser in the plasm pouring hollow includes the sealing cover set with the vent-pipe which is connected to the plasm hollow external and set with the controlling valve. The pressure hollow is connected with the oil input, the oil output, the overflow valve and the pressure meter. First to cover the sealing cover on the rock cranny which, then it is put into the plasm pouring hollow which is filled with the plasm. Giving the pressure to the pressure hollow and opening the controlling valve; when the plasm is discharged from the vent-pipe, the controlling valve is closed. Go on giving the pressure to the pressure hollow until reaching the set pressure. The device is simple and easy to operate, so it can experiment in lab.

Description

technical field [0001] The invention relates to a fissure rock grouting reinforcement technology, in particular to a fissure rock grouting reinforcement experimental instrument and an experimental method thereof. Background technique [0002] In underground rock engineering such as mines, cracks with a certain density are often distributed in the surrounding rock of the roadway, especially in roadways that have undergone large deformation, the density of cracks in the surrounding rock is higher. Surrounding rock grouting can fill these fissures, fill and strengthen the fissure surrounding rock, and convert it into a complete rock mass. This can fully increase the strength of the surrounding rock. [0003] In order to test the grouting reinforcement effect of fractured rock, it must be possible to conveniently carry out grouting reinforcement of fractured rock in the laboratory, and fully inject the grouting slurry into the broken rock. [0004] The experimental device in t...

Claims

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Application Information

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IPC IPC(8): E21D11/10
Inventor 高延法牛学良王波
Owner CHINA UNIV OF MINING & TECH (BEIJING)