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| UNSATURATED FLOW MODEL OF ARGILLITE AND ITS APPLICATION IN SIMULATING WATER TRANSPORT |
| Chen weizhong1, Shao Jianfu2, G. Duveau2, B.Bourgeois2, Li shucai3, Zhu weishen3 |
| (1 key Laboratory of Rock & Soil Mechanics, the Chinese Academy of Sciences, Wuhan, 430071) (2 LML, CNRS, University of Lille 1, Villeneuve D’Ascq, 59450) (3 Geotechnical Research Center, Shandong University, Jinan, 250061) |
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Abstract Based on laboratory unsaturated experimental results of argillite, the extension models of hardening plasticity, Hoek-brown and Mohr-Coulomb failure criteria to include unsaturation in porous media is presented. The developed models are applied to simulate the evolution law of unsaturated water flow in surrounding rock mass and concrete support of an argillite shaft considering of excavation and ventilation. The numerical results show that the in situ stress and hydraulic parameters water relative permeability has high dependence on water transport and sizes of unsaturated zone in rock mass, especially the water relative permeability.
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Received: 31 March 2003
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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2003, Vol. 22 
