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基于非线性位移不连续模型,用半数值半解析方法得到岩体结构面处透射波与反射波质点速度时域显式数值差分格式,编制计算程序模拟随机地震纵波在简单平行多结构面处的传播规律。研究结果表明:随着传过的结构面数目的增多,在特定频率处振幅有先增益后衰减的现象,透射波在时间上有一定延迟。
Based on the nonlinear discontinuous discontinuity model, explicit numerical difference scheme of the time domain of the transmitted wave and the reflected wave particle velocity at the rock mass structural plane is obtained by using the semi-numerical semi-analytical method. The calculation program simulates the random seismic wave at a simple parallel multi-structural plane Propagate the law. The results show that with the increase of the number of structural planes passing through, the amplitude increases first and then attenuates at a specific frequency, and the transmitted wave has a certain delay in time.