【摘要】 利用波函数展开法,分析了爆破地震波与邻近圆形洞室的相互作用,推导了爆破地震波作用下圆形地下洞室围岩的应力和位移表达式,求出了爆破地震波频率不同和围岩性质不同时围岩周围的应力和振速分布。结合应力和振速分布及围岩的抗拉强度,得到了不同工况下围岩的临界破坏振速。更多还原

【Abstract】 The wave function expansion method is used to analyze the interaction of blasting seismic wave and the adjacent underground chambers,the stress expression and displacement expression of circular underground chambers under the blasting vibration are deduced,the stress and displacement distribution of surrounding rocks mass are presented under conditions of the different frequency of blasting seismic wave and different rock mass.In terms of the stress and displacement distribution and the tension strength of the rock mass,the critical failure vibration velocity of surrounding rocks mass is obtained in different conditions.更多还原