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

Fractured rock is a combination of rocks and fractures, the fractures which are ubiquitously distributed in fractured rock mass often constitute the flow and migration path of underground fluid and radionuclide. Discrete Fracture Network Model (DFN) was built with in-situ observations to evaluate the hydraulic conductivity tensor 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. And then, with the use of Dijkstra algorithm, the hydraulic conductivity tensor could be obtained.