裂隙岩体三维网络流的渗透路径搜索  

SEARCHING FOR SEEPAGE PATH OF 3D NETWORK IN FRACTURED ROCK MASSES

作　　者：赵红亮[1] 陈剑平[1] 

机构地区：[1]吉林大学建设工程学院

出　　处：《岩石力学与工程学报》2005年第4期622-627,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：高等学校博士学科点专项科研基金项目(20020183061)

摘　　要：裂隙是岩体的主要渗透通道,但裂隙网络的分布非常复杂,只能借助计算机模拟技术。以随机不连续面三维网络计算机模拟技术构筑岩体裂隙系统的空间分布,为岩体水力学问题研究提供岩体空隙结构的物理背景;依据计算几何学提出三维空间裂隙间相互位置关系模式和相应的判定算法,并建立裂隙网络系统渗流模型和表征裂隙间相互位置关系的图论数学模型,经定义边界条件、确定连通分量、删除孤立裂隙等一系列预处理后,实现了裂隙岩体三维网络流渗透路径的计算机搜索。Fractures are the main seepage path in jointed rock masses, but fracture network system is so complex to describe that the description can only be released by the computer simulation technique. Using the 3D network computational simulation technique for random discontinuities, the distribution of fractures in space can be constructed, which provides the physics background of the porosity structure for the research on hydraulics problem of rock masses. The fractures relation pattern with corresponding algorithm is given on the basis of computational geometric, and then the graph theory is employed as the mathematical model to represent the mutual positional relation of fractures in 3D space. Utilizing a series of preprocessing operation such as defining the boundary condition, determining connected components, cutting the isolated fractures and dead ended fractures, the depth-first search algorithm for seepage paths of 3D network in fractured rock masses is implemented by computer automatically, and the feasibility is proved by an example of practical engineering application.

关 键 词：岩石力学 岩体水力学 三维网络模拟 深度优先搜索 渗透路径 

分 类 号：O241[理学—计算数学] TU452[理学—数学]