中文摘要：

根据有弹性的波浪的特征，在媒介和橡皮的申请的繁殖在岩石团工程挥动方法，有随机的裂口的裂口团被认为是伪各向同性的裂口质量。根据岩石破裂力学，精力平衡和 Castiglano 的原则“ s 定理，弹性的有效动态参数的关系(E，υ， G ) 并且裂口密度参数或孔被提出。Onthis 基础通过在各向同性的媒介的有弹性的波浪繁殖的理论，在有弹性的波浪速度和裂口密度参数和孔之间的关系被建立。Thetheoretical 研究结果证明在这种裂口岩石群众中，在弹性和波浪速度的有效动态参数和裂口密度参数或孔之间有非线性的关系；并且随裂口密度参数或裂口岩石的孔的增加，群众，有效动态模量和橡皮挥动裂口岩石群众愿望减少的速度；并且同时，当裂口密度参数或孔是很小的时，弹性的有效动态模量和有弹性的波浪速度随着裂口密度变化参数，它能解释裂口岩石的有效有弹性的参数和有弹性的波浪速度的敏感集中。

英文摘要：

According to the characteristic of elastic waves propagation in medium and the application of elastic waves method in rock mass engineering, the cranny mass with random crannies was regarded as quasi-isotropic cranny mass. In accordance with the rock rupture mechanics, principle of energy balance and Castiglano＇s theorem, the relationship of effective dynamic parameters of elasticity （E, v, G） and cranny density parameters or porosity was put forward. On this basis, through the theory of elastic waves propagation in isotropic medium, the relationship between the elastic wave velocity and cranny density parameters and porosity was set up. The theoretical research results show that, in this kind of cranny rock masses, there is nonlinear relationships between the effective dynamic parameters of elasticity and wave velocities and the cranny density parameter or porosity; and with the increase of cranny density parameter or porosity of cranny rock masses, the effective dynamic modulus and the elastic wave velocities of cranny rock masses will decrease; and at the same time, when the cranny density parameter or porosity is very small, the effective dynamic modulus of elasticity and the elastic wave velocities change with the cranny density parameter, which can explain the sensitivity of effective elastic parameters and elastic wave velocities to cranny rock masses.