论文部分内容阅读
针对岩体裂隙系统提出了计算各向异性渗透系数的方法,给出了使用有限差分法计算各向异性渗透系数的数值方法和差分单元渗透性的计算公式,并以实际裂隙网络系统资料为基础进行了该方法的应用探讨.该方法可以在已知裂隙网络的基础之上计算岩体的各向异性渗透系数.通过加密剖分网,它可以更好地消除裂隙非贯通性的影响,并可以处理裂隙充填等问题.此外还可以分析裂隙岩体渗透性随测量窗口尺度大小的变化,并进行其连续介质性质检查
Aiming at the fracture system of rock mass, a method to calculate the anisotropic permeability coefficient is put forward. The numerical method for calculating the anisotropic permeability coefficient by using the finite difference method and the formula for calculating the permeability of the differential element are given. Based on the actual fracture network system data, The application of this method is discussed. This method can calculate the anisotropic permeability of rock mass based on the known fracture network. By encrypting the mesh, it can better eliminate the effects of fracture non-continuity and can deal with problems such as fissure filling. In addition, the permeability of the fractured rock mass can be analyzed with the change of the size of the measuring window and the continuity of its properties