Method for determining shearing strength of structural plane of layered rock mass
A technology for determining shear strength and determination method, which is applied in the direction of applying stable shear force to test the strength of materials, etc., which can solve the problems of determining shear strength and achieve convenient operation, low cost and good use effect
Active Publication Date: 2014-09-03
GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem of not being able to determine the shear resistance of the primary structural plane and structural structural plane in layered rock mass based on in-situ shear, laboratory tests and other estimation methods under the condition of unknown structural plane specific position and potential slip direction. In view of the disadvantages of strength, provide a method with simple principle, convenient operation, low cost, good use effect, and easy to determine the shear strength of layered rock mass structural plane
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[0020] The present invention will be described in detail below by taking the determination of the shear strength of the layered rock mass structural plane in the slope engineering of the Hakka Town Scenic Spot in Meizhou City, Guangdong Province as an example. In this project, the rock mass is mainly layered sandstone with well-developed shear joints. Due to the high and steep slope, the in-situ shear test conditions for structural planes are not available, and the positions of structural planes and potential slip directions cannot be accurately determined. Did not carry out indoor direct shear test, adopt the inventive method to determine structural surface shear strength at last, obtain good application effect, this method comprises the following sequential steps:
[0021] (1) A diamond drill double-tube single-action drilling tool and clear water drilling were used for sampling. A total of 123 samples were taken. The samples were prepared as cylinders with a diameter of 5 cm...
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Abstract
The invention discloses a method for determining shearing strength of a structural plane of a layered rock mass, which is suitable for a primary structural plane and a tectonic structural plane in a layered rock mass. The method has the advantages of simple principle, convenience in operation, low cost, good use effect and high practicality, can be used for conveniently determining the shearing strength of the structural plane of the layered rock mass, and overcomes the defect that the shearing strength cannot be accurately determined under the condition that the concrete position and the potential sliding direction of the structural plane in the prior art.
Description
technical field [0001] The invention relates to a method for determining the shear strength of a layered rock mass structural plane, which is suitable for primary structural planes and structural structural planes in the layered rock mass. Background technique [0002] In the prior art, no method has been found to determine the shear strength of a structural plane of a layered rock mass under the condition that the specific position of the structural plane and the potential slip direction are unknown. At present, the test methods for determining the shear strength of rock mass structural planes mainly include in-situ shear and indoor direct shear test methods. The cost of in-situ shear test is high and the implementation is difficult; the preparation of indoor direct shear test specimens is complicated. Moreover, whether it is an in-situ shear test or an indoor direct shear test, it is necessary to determine the position of the structural surface and the potential slip direc...
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IPC IPC(8): G01N3/24
Inventor 谢晓锋徐标韩佳泳于海涛谢鹏邢亮刘远亮黄嵩
Owner GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD