超前支护与巷道围岩耦合动力学研究  

Study on coupling dynamics of advanced support and tunnel surrounding rock

作　　者：赵慧萌 栾丽君[1] 谢苗[1] 倪涛 刘治翔[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000 [2]朝阳体彩发行中心,辽宁朝阳122000

出　　处：《中国安全科学学报》2016年第11期49-53,共5页China Safety Science Journal

基　　金：国家自然科学基金资助(51304107)

摘　　要：为研究综掘巷道超前支护装备与巷道围岩耦合动力问题,基于薄板理论的顶板动力学模型,建立巷道顶板力学模型。简化超前支护装备,通过各部件的运动微分方程建立整机动力学模型;最后建立考虑多点支护条件下的超前支护-顶板体系耦合动力学模型。用多体系统动力学仿真软件Recur Dyn研究多种工况下耦合动力模型的动态响应过程。结果表明,在支护的压力冲击、振动以及综掘截割扰动等因素影响下,侧帮和顶板位移变形较剧烈。在有效支撑区段,变形小于未支护顶板的位移最大值;非有效支撑区段的位移极值小于未支护顶板的位移极值,表明超前支护对顶板变形有一定的控制作用。For the sake of studying the coupling dynamic problem of leading support equipment and surrounding rock of roadway in fully mechanized mining, a dynamic model of roadway roof was built on the basis of the theory of thin plate. A dynamic model was built for the whole machine by simplifying the advanced support equipment. Finally, a coupling dynamics model of the leading support and roof system considering multi support condition was built. The dynamic response processes of coupling dynamic model under different conditions were studied by using multi-body system dynamics simulation software RecurDyn. The research results show that due to the influence of the pressure shock, vibration and the cutting disturbance of the fully mechanized mining, significant displacement and deformation of the side wall and roof take place of, and that advanced support of the roof deformation can play a certain role in the control.

关 键 词：超前支护 薄板理论 顶板支护 围岩耦合 动力学 

分 类 号：X936[环境科学与工程—安全科学]