中文摘要：

应力波传播特性的研究是进行工程动态稳定性评价的基础。依托柱状节理玄武岩开挖爆破试验,考虑节理岩体的蠕变和应力松弛特性,提出了黏弹性节理的等效标准线性固体模型,采用“位移不连续理论”,获得了应力波入射黏弹性节理的传播方程,并探讨了应力波入射黏弹性节理的传播规律。透射系数随入射波频率的增大而减小,而反射系数整体上呈现出随频率的增大而增大的趋势。在临界入射角内,随入射角度增大,转换波（T_（sp）,T_（ps）,R_（sp）和R_（ps））均先增大后减小且转换波的透射系数（T_（sp）和T_（ps））最小,反射同类型波（R_（ss）或R_（pp））先减小后增大,透射同类型波（T_（ss）或T_（pp））则基本没有变化;应力波在节理处发生了复杂的能量转移,随入射角度增大,反射同类型波和反射转换波之间能量此消彼长并在某一角度附近几乎同时达到极值,同类型波的部分能量转移到转换波,但其能量仍远高于转换波。

英文摘要：

The study on the propagation characteristics of stress waves is crucial to estimate the dynamic stability of project construction. Based on the excavation blasting tests on the basalt rock mass with colunmar joints and considering the creep and stress relaxation characteristics of rock, an equivalent standard linear solid model for rock mass joints is proposed. By using the displacement discontinuity method, the propagation equation for obliquely incident stress waves across viscoelastic joints is carded out. Then the propagation characteristics are studied. The reflection coefficient increases with the increase of the frequency of incident waves, but the transmission coefficient decreases rapidly. As the incident angle increases within the critical angle, the transmission coefficient of converted waves （Tsp or Tps） has the smallest value and increases at first then decreases, while the reflection coefficient of converted waves （R~p or Rps）, and Rss（Rpp） decreases at first then increases, but Tss（Tpp） basically has no change. Complex energy transfer happens when the stress waves cross the viscoelastic joints. The energy between Rss（Rpp） and Rsp（Rps） transfers to each other, then reaches their extreme points almost together when the incident angle is close to a certain value. The energy of the same kind of waves is been transferred to that of converted waves as the incident angle increases. But the same kind of waves have much more energy than the converted waves all the way.