Rock shear test equipment and direct shear test test method for rock test blocks
A shear test and rock test block technology, applied in the field of geotechnical engineering, can solve the problems of low accuracy and lack of normal constant stiffness loading mode, and achieve the effect of high accuracy and improved accuracy
Inactive Publication Date: 2021-04-30
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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[0004] Based on this, it is necessary to provide a rock shear test equipment that can improve the accuracy of the test results and a shear test for rock test blocks to solve the problems of low accuracy of the test results of the conventional direct shear test and the lack of normal stiffness loading mode. Test method
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[0043] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of ...
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The invention relates to rock shear test equipment and a direct shear test test method for rock test blocks. The rock shear test equipment includes a main frame, a shear box, a vertical loading device, a horizontal loading device and test components. The first half box of the shearing box is opposite to the second half box and stacked to form a volume-adjustable accommodating space. The vertical loading device includes a normal loading cylinder. The horizontal loading device includes a horizontal loading oil cylinder. The horizontal loading oil cylinder includes a second fixed end and a second action end. The test assembly includes a plurality of normal load sensors installed on the first action end. Any one of the plurality of normal load sensors is used to collect the normal stress value of the rock test block. The measurement range of each normal load sensor is different. Therefore, the above-mentioned rock shear test equipment can perform direct shear tests on rock test blocks of different sizes and specifications, and make the results of the direct shear tests more accurate.
Description
technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a rock shear test device and a direct shear test method for rock test blocks. Background technique [0002] With the development of large-scale geotechnical engineering to deep rock mass, the safety of deep geotechnical engineering has been paid more and more attention. Deep engineering rock masses usually contain natural structural planes of various shapes and sizes, and their locations usually have high in-situ stress. The existence of structural planes reduces the strength of rock mass, so the failure of structural planes is likely to be Induce large-scale and severe geological disasters. Therefore, conducting indoor direct shear tests is a common method to study the stress, deformation and failure mechanism of structural surfaces in rock bodies under high stress. The rock shear test equipment is currently the most commonly used indoor direct shear test equi...
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IPC IPC(8): G01N3/02G01N3/24
CPCG01N3/02G01N3/24
Inventor 江权冯夏庭李邵军徐鼎平苏国韶晏飞邱士利
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI