Analytical investigation of wave propagation across jointed rock mass with single-joint and multiple parallel joints

Wave propagation across the rock masses is one of the most topics in rock dynamics, which is used in various petroleum, mining, civil military industries. Since rock mass includes rock material and various forms of discontinuities, the nature of rock mass discontinuities significantly affects mechanical properties and engineering behavior. Therefore, adequate knowledge and understanding of how the wave propagates in rock mass, especially for projects that are more important and more sensitive, is necessary. In the present paper, the analytical method for wave propagation across rock mass based on the method developed by Huang et al. (2014) is presented for elastic state and wave propagation in single-joint and multiple parallel joints is studied. Then, a parametric study was performed on parameters including normalized joint stiffness, joint dip, normalized spacing and number of joints on wave propagation in single joint and multiple parallel joints and the obtained results have been compared with the results of other proposed methods.