断裂破碎带岩体裂隙网络随机反演及应用  

Stochastic inversion of fracture networks for rock masses in fault zone and its applications

作　　者：徐德金[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《煤炭学报》2011年第8期1285-1289,共5页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)资助项目(2006CB202205);2010年江苏省普通高校研究生科研创新计划资助项目(CX10B_146Z)

摘　　要：运用数理统计理论,对量测得到有限数量的断裂破碎带岩体裂隙进行统计分析,建立其裂隙的倾向、倾角、迹长、隙宽、间距等几何参数的随机概率统计模型,并应用Monte Carlo方法反演得到断裂碎裂带岩体裂隙网络系统,得出服从高斯、负指数分布规律的裂隙网络模型。实例的计算结果表明:研究区内岩体中裂隙网络的渗透性较好,80%以上的结构面相互连通,阻水性能差,并且显示出3个优势导水方向,即NE、NW和近EW。The fracture networks of rock masses in the fault zone were statistically analyzed,which was limited quantity and measured.Statistical models of stochastic probability were built,that was dip of fracture,dip angle,trace length,gap length,and space length.On this basis,the fracture network system of rock masses was simulated by the Monte Carlo method.After that fracture network model was obtained to obey the distribution rules of Gaussian and negative exponential.The calculating results of the example reflect that fracture networks of rock masses in the fault zone are highly permeable,more than 80% structural surfaces are mutual connected and three permeable directions are dominant,that is NE,NW,approximately EW.

关 键 词：断裂破裂带 岩体 裂隙网络 反演 MONTE Carlo法 

分 类 号：TD313.5[矿业工程—矿井建设]