中文摘要：

为了探讨煤矿地下巷道及围岩结构体系地震动力破坏特征,基于结构动力学理论建立考虑土与结构相互作用的地下巷道结构动力学运动方程,利用有限元计算分析模型分析巷道结构的地震动力响应,通过观测巷道结构特征点的力学响应来分析地下巷道结构的地震动力破坏特征。结果表明：地震作用下巷道结构会出现周期性高应力集中区域,巷道的底部、顶部和两侧最容易发生破坏;地震发生初期巷道的顶板破坏明显强于巷道腰部,可能会造成巷道顶板下沉坍塌;地震发生后期巷道结构容易发生底鼓现象,导致巷道产生整体失稳破坏;需要根据巷道的破坏现象加强巷道结构顶板支护的设计,同时也要及时进行加固维护,以保证巷道结构的安全使用。

英文摘要：

In order to explore seismic dynamic destroy characteristics of the underground roadway structure of coal mine and its surrounding rock,based on structural dynamics theory,we established the dynamics equation of underground roadway structure considering the interaction betw een soil and structure. The finite element calculation analysis model was established to analyze the seismic dynamic destroy response of the roadway structure,and then on the basis of it,the seismic dynamic damage characteristics of underground roadway structure was analyzed. The calculation results show that the roadway structure will appear periodic high stress concentration areas under seismic action,on both sides of roadway,and the top and the bottom of it are most likely to be destroyed. In the early stage of earthquake,the damage of roadway＇roof was stronger than that of roadway＇w aist,which may induce the collapse of the roadway＇ roof; In the late stage of the earthquake,the drum phenomenon was likely to appear at the bottom of the roadway,which caused the instability and destroy of the whole roadway. So we should strengthen the design of the support of the roadway＇ roof,as well as reinforce the maintenance of it in time,to ensure the safe using of roadway structure.