Investigation on 3D modelling and seepage simulation of stochastic fractures for jointed rock masses
Received:May 04, 2023  Revised:June 06, 2023
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DOI:10.7511/jslx20230504002
KeyWord:fractured rock mass  dual fracture-pore media  three-dimensional modelling  seepage simulation
           
AuthorInstitution
季慧 中国人民解放军 32576部队, 广州
王鲁瑀 香港理工大学 土木与环境工程学院, 香港
吴则祥 温州大学 建筑工程学院, 温州
涂冬媚 温州理工学院 建筑与能源工程学院, 温州
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Abstract:
      Simulation of fractured rock mass is vitally important in the analysis of the stability of engineering rock mass.This study investigates the modelling approach and seepage simulation of three-dimensional fractured rock mass.To achieve the quantitative representation of its three-dimensional fractures in space,the attitude equations of three-dimensional fractures are derived based on the analytic geometry.Based on these,the algorithm of generating random fractures and a mesh partition strategy are developed,which provide the basis of fracture visualization and generating fracture cells.Especially,a treatment of three-dimensional intersected fractures is developed,such that the distortion of the cells is reduced.Furthermore,the seepage model of dual fracture-pore media is applied to simulate seepage in three-dimensional fractured rock mass.Different patterns of fractures and the mesh partition results are illustrated.Moreover,seepage characteristics of three-dimensional intersected fractures and random fracturs are analyzed.