标题：Numerical Simulation of Deformation Failure Law of Floor in Deep Mining
作者：Yin Liming; Shi Nan; Li Chunming
作者机构：[Yin Liming] Shandong Univ Sci & Technol, State Key Lab Mine Disaster Prevent & Control, Qingdao 266590, Shandong, Peoples R China.
会议名称：3rd International Workshop on Mine Hazards Prevention and Control
会议日期：NOV 19-21, 2013
来源：3RD INTERNATIONAL WORKSHOP ON MINE HAZARDS PREVENTION AND CONTROL
关键词：Deep mining; Deformation failure; Karst water pressure; Fluid-solid; coupling
摘要：Water conductivity channel under high confined water of deep mining is the root of water hazard. The evolution law of floor abutment stress and theoretical calculation method was discussed by analyzing the stress field and occurrence features of karst water. The research of floor deformation failure features was made by FLAC-3D and the influence of buried depth on floor stress and displacement was analyzed. The change law of deformation failure and pore pressure was obtained based on numerical model of fluid-solid coupling floor. These test results could provide reference for water floor inrush mechanism and prevention of deep mining.