Pressurized grouting test device and method for rock specimens

A technology of grouting under pressure and a test device, which is applied in soil material testing, material inspection products, etc., can solve the problems of difficult production and little practical value.

Active Publication Date: 2014-06-18
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing test devices and test methods are difficult to simulate the effect of on-site grouting, so the practical value is not large, and it is difficult to correctly guide the production

Method used

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  • Pressurized grouting test device and method for rock specimens
  • Pressurized grouting test device and method for rock specimens
  • Pressurized grouting test device and method for rock specimens

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Embodiment Construction

[0019] Such as figure 1 As shown, the present invention is used for the pressure grouting test device of rock test piece, comprises test piece cavity 11 and the grouting device 12 that is communicated with test piece cavity 11, and the internal diameter of test piece cavity 11 is 190mm, and the height of cavity body is 130mm, test The piece cavity 11 is connected with an exhaust and a slurry discharge pipeline 111, and a pressure gauge is arranged on the exhaust and slurry discharge pipeline 111, such as figure 1 , 2 As shown, the lateral periphery of the specimen chamber 11 is provided with a pressure chamber cylinder 131, the pressure chamber cylinder 131 is made of steel, and the left and right ends of the lateral side wall of the specimen chamber 11 are respectively embedded in the pressure chamber cylinder 131. Left and right ends, and there is a gap between the middle part of the pressure chamber cylinder 131 and the middle part of the lateral side wall of the test piec...

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Abstract

The invention discloses a pressurized grouting test device for rock specimens. The pressurized grouting test device comprises a specimen cavity and a grouting device communicated with the specimen cavity, wherein a pressure chamber cylinder is arranged at the transverse periphery of the specimen cavity; the left and right ends of a transverse side wall of the specimen cavity are fixed with the left and right ends of the pressure chamber cylinder, respectively; a gap is reserved between the middle of the pressure chamber cylinder and the middle of the transverse side wall of the specimen cavity and forms a pressure chamber; the transverse side wall of the specimen cavity is made of an elastic material; the pressure chamber is connected with a confining pressure pressurization device; one side of an axial direction of the specimen cavity is connected with an axial pressurization device. According to the test device, the test process is in fit with actual conditions on the site, the simulation process is accurate, and the practical value of the test is high.

Description

technical field [0001] The invention relates to a test device and a test method for a rock test piece, in particular to a grouting test device and a grouting test method for a rock test piece. Background technique [0002] In underground mining, the excavation of various chambers or roadways will inevitably cause changes in the original stress state of the rock mass around the roadway. When the stress exceeds the strength of the surrounding rock mass, if the necessary support technology and reinforcement measures are not taken , the surrounding rock mass is bound to be deformed until it is destroyed, and grouting reinforcement, as an important means of controlling the deformation of the surrounding rock, is widely used in the reinforcement of underground roadways or chambers. At the same time, due to the complexity of the site conditions, the size of the grouting pressure, the water-cement ratio of the grout, the selection of the grouting material, and the inspection of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 徐乃忠涂敏张迎贵徐云飞范廷鹏
Owner ANHUI UNIV OF SCI & TECH
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