Pressure bearing permeation grouting strengthening test apparatus and method

A technology of grouting reinforcement and testing equipment, which is applied in the direction of measuring equipment, permeability/surface area analysis, preparation of test samples, etc. It can solve the problems that the influence cannot be considered, and it is difficult to simulate the grouting working conditions, etc., and achieve simple structure and easy fabrication. The effect of easy and convenient operation

Inactive Publication Date: 2013-08-28
CHINA UNIV OF MINING & TECH
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AI Technical Summary

Problems solved by technology

[0006] The existing grouting test model equipment can only complete the grouting test at normal pressure, but cannot consider the influence of changes in the upper axial pressure and confining pressure when grouting into micro-crack (pore) geology. grouting directly into sand or gravel layers
It is difficult to simulate and test the grouting conditions at a specific buried depth

Method used

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  • Pressure bearing permeation grouting strengthening test apparatus and method
  • Pressure bearing permeation grouting strengthening test apparatus and method
  • Pressure bearing permeation grouting strengthening test apparatus and method

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 and figure 2 As shown, a pressurized penetration grouting reinforcement test device includes a grouting bucket 1, a grout storage device 2, and a manual grouting pressure device 3. The grouting bucket 1 includes a base 4 and a bucket body 5 , and the lower part of the bucket body 5 is connected to the base 4 through high-strength bolts 6 . The base 4 is provided with a grouting hole 7, and the grouting hole 7 is connected with a high-pressure hose 1, and the high-pressure hose 1 is installed with a high-pressure valve 8 and a pressure gauge 9 in sequence, and the other end of the high-pressure hose 1 is connected with the slurry storage device 2 connections. The slurry storage device 2 is provided with a piston 10, and the manual grouting pressurizing device 3 is placed under the piston 10, and pressurizes the slurry by pushing the piston 10...

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Abstract

The present invention relates to a pressure bearing permeation grouting strengthening test apparatus and a method. The apparatus mainly comprises a grouting bucket, a slurry storage device and a manual grouting pressurization device, wherein the grouting bucket comprises a base, a bucket body and a pressing head, a grouting hole is arranged in the base, and is connected with the slurry storage device through a high pressure soft pipe, the slurry storage device is provided with a piston, and the manual grouting pressurization device is placed below the piston. With the test apparatus, influence of axial pressure, confining pressure and other factors of the upper portion of the micro fracture (pores) geology on the grouting can be simulated; the grouting conditions of the geological bodies with different physical and mechanical properties under different grouting parameters and different grouting process conditions can be simulated so as to analyze a mechanism and an effect of grouting strengthening; and with the test apparatus, broken coal rock bodies, soil samples and sand samples can be made into complete samples, can be processed into standard samples through a cutting machine, and then are subjected to related uniaxial and triaxial tests. In addition, the test apparatus has characteristics of simple structure, easy manufacturing, low cost, easy operation, and reliable use.

Description

technical field [0001] The invention relates to a pressure-bearing seepage grouting reinforcement test device and method, which are especially suitable for pressure-bearing seepage grouting reinforcement tests of indoor simulated broken coal rock masses, soil samples and sand samples. Background technique [0002] In mining and underground engineering, grouting is a technology to effectively strengthen the broken surrounding rock mass. It uses mechanical equipment and adopts a reasonable grouting process to inject suitable grouting materials into engineering objects to achieve filling, Reinforcement, water blocking and other purposes. In order to study the effect of grouting, the experimental device of grouting test is often used to simulate the actual grouting application environment, so the experimental device of grouting test is of great significance to the research of grouting. [0003] Grouting is a complex project, and its seepage process and grouting effect are joint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N1/28
Inventor 韩立军宗义江孟庆彬韩贵雷藤菲李贞冉军林
Owner CHINA UNIV OF MINING & TECH
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