摘要
根据裂隙资料统计分析结果,基于Monte-Carlo随机模拟原理利用Python语言编制能生成服从一定概率分布的随机变量的计算机程序,借助三维离散元软件3DEC进行三维裂隙网络模型的搭建并且对该模型进行验证。结合某工程实例,在裂隙网络模型基础上建立了三维裂隙渗流模型,该模型将岩石看作不透水体且地下水在裂隙中流动,遵循Darcy定律和立方定律,研究岩体三维裂隙渗流特征。研究结果表明:通过Monte-Carlo随机模拟方法建立的三维裂隙网络模型具有较高的现场还原度,NW组裂隙为该研究区地下水渗流的主控裂隙,且主渗透方向大致为北偏东20°。
According to the Monte-Carlo stochastic simulation principle,a computer program that can generate random variables subject to a certain probability distribution was programmed by Python language based on analysis results of fracture statistics.The three-dimensional discrete element software 3DEC was used to build the three-dimensional crack network model and verify the model.Based on a project example,a three-dimensional crack seepage model was established on the basis of the crack network model,which considers rocks as impervious water and groundwater flows in the crack,and the seepage characteristics of three-dimensional crack in accordance with Darcy's law and cubic law was studied in this paper.The results showed that the three-dimensional crack network model established by Monte-Carlo stochastic simulation had a high degree of field reduction,and NW group crack was the main control crack of groundwater seepage in the area,and the main seepage direction was about 20°to the north by east.
作者
张亚
ZHANG Ya(Guangzhou Urban Planning&Design Survey Research Institute,Guangzhou 510060,China)
出处
《甘肃科学学报》
2023年第4期51-55,共5页
Journal of Gansu Sciences
