Fracture Behavior and Water Migration in Heterogeneous and Porous Rocks

Abstract:

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Based on the heterogeneous and porous characteristics of rock materials, a flow-stressdamage (FSD) model, implemented with the Rock Failure Process Analysis code (RFPA2D), is used to investigate the behavior of fluid flow and damage evolution, and their coupling action in rock sample that are subjected to both hydraulic and uniaxial compressive loading. A highly heterogeneous sample, containing grains, grain boundaries and weak zones, is employed in the numerical simulation. The simulation results provide a deep insight in the physical essence of the evolutionary nature of fracture phenomena as well as the fluid flow in heterogeneous materials, especially when they are highly stressed. The simulation result suggests that the nature of fluid flow and strength character in rocks strongly depends upon the heterogeneity of the rocks.

Info:

Periodical:

Key Engineering Materials (Volumes 297-300)

Edited by:

Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim

Pages:

2636-2641

DOI:

10.4028/www.scientific.net/KEM.297-300.2636

Citation:

L. C. Li et al., "Fracture Behavior and Water Migration in Heterogeneous and Porous Rocks", Key Engineering Materials, Vols. 297-300, pp. 2636-2641, 2005

Online since:

November 2005

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Price:

$35.00

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