(1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan,Hubei 430010,China;2. Faculty of Engineering,China University of Geosciences,Wuhan,Hubei 430074,China;3. Department of Applied Geology,University of Erlangen-Nuremberg,Erlangen 91054,Germany)
Abstract:How to obtain the actual and reliable shear strength parameters of rock structural plane is the essential precondition for studying the strength of whole rock mass. The characteristics of one structural plane sample are quite different from those of another structural plane;and the mechanical tests also can?t be repeated easily. So it is very hard to obtain the reliable shear strength parameters only by mechanical test directly,or the test results are not available. Taking the rock structural plane samples with oriented deformation character for objective,a new method,which combines shear tests on rock structural planes,three-dimensional spatial analysis of rock discontinuities morphology and numerical simulation,was put forward. It was proved to be effective in obtaining actual and reliable shear strength parameters of structural plane. The advantages of this method can be described as follows:For rock structural plane,the two parts of friction angle,i.e. basic friction angle and climbing angle,can be separated completely;and three-dimensional morphology characteristic and shear deformation direction can be considered. Meanwhile,the combination of mechanical test and numerical test can solve the question that the shear mechanical test can?t be repeated.
江洎洧1,2,3,项 伟2,JOACHIM Rohn3,姚 远2. 基于三维形态空间分析和仿真试验的岩体结构面剪切强度参数研究[J]. 岩石力学与工程学报, 2012, 31(10): 2127-2138.
JIANG Jiwei1,2,3,XIANG Wei2,JOACHIM Rohn3,YAO Yuan2. RESEARCH ON SHEAR STRENGTH PARAMETERS OF STRUCTURAL PLANES IN ROCK MASS BASED ON THREE-DIMENSIONAL MORPHOLOGY SPATIAL ANALYSIS AND SIMULATION TESTS. , 2012, 31(10): 2127-2138.
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