采动岩体动态力学模型  

ON THE DYNAMIC MECHANICS MODEL OF MINING SUBSIDENCE

作　　者：王悦汉[1] 邓喀中[1] 吴侃[1] 郭广礼[1] 

机构地区：[1]中国矿业大学环测学院,徐州221008

出　　处：《岩石力学与工程学报》2003年第3期352-357,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金重点资助项目(59634030);教育部优秀青年教师基金资助项目

摘　　要：将开采引起的上覆岩层移动过程分为4个时段,采用不同的岩体移动力学模型模拟不同时段的岩层移动。建立了各阶段岩层移动模型的微分方程,给出了各模型的边界条件以及各模型之间的转换条件,建立了采动岩体动态力学模型,编制了相应的计算机可视化程序。该模型不但能计算动态岩层和地表移动,而且能计算离层发育位置、岩体破裂高度及顶板岩体周期断裂步距。实测资料证明了模型的正确性。The strata movement falls into four phases. Different mechanics models are used to simulate the strata movement in different phases. The differential equations are derived for strata movement models in different phases. The boundary conditions of each model and exchange conditions between different models are put forward. The visual computing program is developed to compute movement of strata and surface, position of bed separation, caving height of mined rockmass and caving step length of roof. The model has been proved by comparison with field data.

关 键 词：采矿工程 力学模型 开采 沉陷 岩层移动 

分 类 号：TD325[矿业工程—矿井建设]