岩层移动规律的非线性有限元模拟研究  

STUDY OF ROCKMASS MOVEMENT LAW BY NON-LINEAR FEM

作　　者：疏开生[1] 倪宏革[1] 

机构地区：[1]淮南矿业学院

出　　处：《煤炭学报》1993年第4期1-12,共12页Journal of China Coal Society

摘　　要：采用有限元法和大型通用ADINA程序,选用材料非线性模式——带有硬化帽的弹塑性Drucker-Prager-Cap和拉断计算屈服条件模式,对矿山岩层移动及破坏状况进行了模拟与计算分析,获得了开采区域上、下方及周围岩体的应力、位移的大量数据与分布曲线,以及冒落裂缝的发展高度和地表下沉量,比较全面、定量地揭示了岩层移动及变形破坏规律。其结果与公认的结论或实测数据相吻合。The rockmass movement and failure conditions were simulated and analyzed by using FEM,general program ADINA,non-linear material model, elastoplastic Drucker-Prager Harden Cap and pullapart yielding condition model. A great number of data were obtained,such as stress distribution curves and displacement rockmass above and below,and around the workings,height of craking zone,and surface subsidence,which reveals quantitatively the law of rockmass movement, deformation and failure. These results are basically consistent with the established or measured data.

关 键 词：岩层移动 有限元 模拟 非线性 

分 类 号：TD325[矿业工程—矿井建设]