Abstract：Based on the concept of equivalent stiffness of rock masses，the estimation of joint stiffness in distinct element model of stiff blocks is discussed. The propagation of P-wave in one-dimensional rock masses is analyzed according to plane to plane contact model. The P-wave shape is presented. The effects of damping，soft interlayer and tension property on the propagation characteristics are studied.
郭易圆 李世海. 有限长岩柱中纵波传播规律的离散元数值分析*[J]. 岩石力学与工程学报, 2002, 21(08): 1124-1129.
Guo Yiyuan， Li Shihai. DISTINCT ELEMENT ANALYSIS ON PROPAGATION CHARACTERISTICS OF P-WAVE IN ROCK PILLAR WITH FINITE LENGTH. , 2002, 21(08): 1124-1129.
1Cundall P A. A computer model for simulating progressive large scale movements in blocky systems[A]. In：Proceedings of the Symposium of the International Society of Rock Mechanics[C]. Nancy，France：
[s. n.]，1971
2Dowding C H，Belytschko T B，Yen H J. A coupled finite element-rigid block method for transient analysis of caverns[J]. International Journal for Numerical and Analytical Methods in Geomechanics，1983，7(1)：117～127
2002, Vol. 21 
