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| COUPLING ANALYSIS ON HYDRAULIC FRACTURING PROCESS OF ROCK |
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Abstract Hydraulic fracturing is a typical illustration of coupling between seepage and stress in rock failure process. Based on Biot seepage mechanics equations and elastic damage theory，the coupling model between seepage and stress in rock failure process is proposed. By using Coupling System of Flow and Solid in Rock Failure Process Analysis，F-RFPA2D，the initialization and propagation of crack in hydraulic fracturing process is simulated to analyze the law of permeability evolvement，seepage-stress coupling mechanism and unstable behavior of rock.
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Received: 29 August 2001
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