摘要
本文在前人对有限元研究的基础上,首次将三维空间有限单元法用于分析和研究缓倾斜矿体房柱采矿法的最优采场结构参数.独立地编制了对岩层进行应力和变形分析的三维有限元通用程序,并调试通过.根据对贵州汞矿的实际模拟计算,证明该程序的求解精度满足工程要求,矿山现用采场结构尺寸还存在着很大的潜力,可提高矿房跨度,减小矿柱尺寸,从而降低矿石损失,充分利用地下资源,增加企业经济效益.
Firstly,the three-dimensional finite element method is used for analysising and stud- ying excellent stope structural size of flat-lying deposits room-and-pillar mining,which is on the foundation of predecessors' research work on finite element method.The authors have worked out the computer program for the three-dimensional finite element method. The program is suitable to the study of the displacements and stresses of uniform rock for- mation with diferent properties.And,it has been handled and performed in IBM mini-computer.The result of system simulation study proves that the precision fo the program satisfies the demand of engineering and that the stope structual size used in Guizhou Mercury Mine is safe and reliable and having great potentialities.
关键词
房柱法
结构尺寸
三维
有限元
采矿
Room—and—pillar mining
Structural size
Simulant research
Three-dimensional finite element method
