Seepage Numerical Simulation Methods of Hard Fractured Rock Mass

Gang Lei

doi:10.4028/www.scientific.net/AMM.423-426.1330

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Seepage Numerical Simulation Methods of Hard...

Seepage Numerical Simulation Methods of Hard Fractured Rock Mass

Abstract:

According to the seepage action of hard rock fissure water, a numerical simulation method is proposed in this paper. The basic mechanical properties for rock mass changed significantly during the process of secondary stress adjustments, and the rock deterioration constitutive model (RDM) can accurately reflect both the abruptness of the rock yield failure and the changes of mechanical parameters after yield. On the basis of RDM, the permeability coefficient with equivalent plastic strain function was introduced in this method which can update the permeability coefficient, and carried out numerical simulation on hard rock fissure water seepage action by FLAC^3D. The results of the seepage triaxial compression experiment proved the rationality of the method.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

1330-1333

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.1330

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Online since:

September 2013

Authors:

Gang Lei

Keywords:

Experiment, Hard Rock Deterioration, Numerical Simulation Method, Seepage

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References

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