Effect of Interconnection of Fractures on Dispersion in Flow Through Fractured Networks

by Cheng-Haw Lee, Natl Cheng Kung Univ, Tainan, Taiwan,
Jin-Li Yu, Natl Cheng Kung Univ, Tainan, Taiwan,
Chao-Ming Tsai, Natl Cheng Kung Univ, Tainan, Taiwan,



Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1993

Abstract:

A stochastic modeling technique in a 2-D discrete fracture network with two orthogonal sets of fractures is developed to investigate mass transport dispersion and to investigate the relation between the mean square displacement to the particle travel time in various percolation probabilities using the random walk and particle tracking method. Results indicate that the dispersion of mass travel is affected by interconnection of fractures. An increasing the percolation probability will increase the slope of the scaling relation between the mean square displacement and time when the percolation probability is larger than the percolation threshold.

Subject Headings: Cracking | Probability | Percolation | Fluid flow | Two-dimensional models | Stochastic processes | Rock masses

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