三维随机裂隙网络非稳定渗流模型  

A three dimensional tbeoretical model of transient ground water flow in stochastic network of fractured rock mass

作　　者：王洪涛[1] 李永祥[1] 

机构地区：[1]清华大学,北京100084

出　　处：《水利水运科学研究》1997年第2期139-146,共8页

摘　　要：介绍了在岩体三维随机裂隙网络中进行非稳定地下水渗流分析的数学模型和方法。包括：岩体裂隙系统特征和随机裂隙网络描述，三维裂隙网络非稳定修流数学模型，交叉点和交叉线识别和有限元数值解，井流量在裂隙网络中的分配方法，排水管道问题，非线性模型的迭代解法等。最后，针对裂隙网络中的轴对称井流和任意分布裂隙系统中的排水管道问题对模型进行了应用计算，验证了模型及其算法程序的有效性。A new three dimensional model for the analysis of transient ground water now in a stochastic fracture network of a fractured rock mass is presented in this paper. The contents of paper include the characterizing of a rock fracture system and its description in terms of stochastic fracture network, the three dimensional mathematical model of transient now in a fracture network and its finite element solution, the identification of intersections (points and lines) between fractures, the distribution of a well discharge in different fractures and the water drainage problems, and the iteration method for solving a non-linear flow model. Finally, aim at the axially symmetric well flow in fracture network and the drainage conduit problem in arbitrary distributed fracture system, applied computations of the model were conducted, thus verified the effectiveness of the model and its algorithmic routine.

关 键 词：随机裂隙网络 三维 非稳定渗流 模型 岩体渗流 

分 类 号：TV139.14[水利工程—水力学及河流动力学]