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| Method for determining shear strength of fractured rock mass plane |
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Received:June 11, 2019
Revised:July 11, 2019
Accepted:July 12, 2019
Published Online:May 14, 2020
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| DOI： |
| KeyWord:Shear strength; direct shear test; clay rock; reconstruction |
| Author | Institution |
| YUANYE |
BGRIMM Technology Group |
| WANGHE |
BGRIMM Technology Group |
| YUSHIBO |
BGRIMM Technology Group |
| HUANGDAN |
BGRIMM Technology Group |
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| Abstract: |
| In order to solve the problem that it is difficult to prepare laboratory mechanical test specimens and obtain shear strength parameters for rock mass failure, this paper studies the failure of laboratory mechanical test specimens. Through theoretical analysis, the paper puts forward a kind of based on the shear strength test method for reconstruction of the sample, using epoxy resin mold test packages, rock sample preparation according to the requirements of different angles, shear experiment in the reference variable Angle shear test with China through indoor test and bauxite broken determination of shear strength of the rock mass structure, get the cohesion is 2.44 Mpa, internal friction Angle is 23.5 °. The results show that the shear strength of the structural plane of the fractured rock mass in huaxing bauxite is consistent with the field practice, which verifies the practicability of the method. The method can obtain the shear strength of the structural plane of the fractured rock mass and provide reference for other mines. |
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