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从岩体宏观连续性假设出发,引入岩体表征单元体(REV)概念.首先根据岩块的三轴与卸载回弹试验以及结构面的室内直剪试验确定其基本力学参数;然后以数值模拟试验方法,依据当岩体区域体积达到并超过岩体REV尺寸时其力学性质趋于稳定的变化规律,对岩质边坡岩体REV的存在以及大小进行确定;最后根据满足REV尺寸的三维模型最终计算出对应边坡岩体的力学参数.
Based on the assumption of macroscopic continuity of rock mass, the concept of rock mass characterization unit (REV) is introduced.Firstly, the basic mechanical parameters of rock mass are determined according to the triaxial and unloading springback test of rock mass and the indoor direct shear test of structural plane. The test method is to determine the existence and size of REV in rock mass rock mass based on the regularity that the mechanical properties tend to be stable when the volume of rock mass reaches and exceed the size of REV. Finally, according to the three-dimensional model Finally, the corresponding mechanical parameters of slope rock mass are calculated.