| 裂隙岩体水–冰相变及低温温度场–渗流场–应力场耦合研究 |
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| 引用本文： | 刘泉声,康永水,刘滨,朱元广.裂隙岩体水–冰相变及低温温度场–渗流场–应力场耦合研究[J].岩石力学与工程学报,2011,30(11):2181-2188. |
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| 作者姓名： | 刘泉声 康永水 刘滨 朱元广 |
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| 作者单位： | (中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室，湖北 武汉 430071) |
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| 摘 要： | 岩体冻融损伤涉及低温环境下温度场、渗流场和应力场的耦合问题。基于水–冰相变理论和能量守恒原理，得出冻结率表达式。运用双重孔隙介质模型理论，根据质量守恒定律、能量守恒定律及静力平衡原理，得出冻结条件下裂隙岩体的温度场–渗流场–应力场(THM)耦合控制方程。最后，通过1个含裂隙隧道低温THM耦合算例，将围岩当作岩块与裂隙介质组成的系统，采用等效热膨胀系数法对夹冰(含水)裂隙的冻胀效应进行模拟，并考虑冻结过程对岩体渗透系数的影响，研究低温THM耦合条件下的温度场、应力场及孔隙压力等的分布规律。
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| 关 键 词： | 岩石力学 冻岩 温度场&ndash渗流场&ndash应力场耦合 相变 双重孔隙介质 |
| 收稿时间： | 2011-03-24; |
WATER-ICE PHASE TRANSITION AND THERMO-HYDRO-MECHANICAL COUPLING AT LOW TEMPERATURE IN FRACTURED ROCK |
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| LIU Quansheng,KANG Yongshui,LIU Bin,ZHU Yuanguang.WATER-ICE PHASE TRANSITION AND THERMO-HYDRO-MECHANICAL COUPLING AT LOW TEMPERATURE IN FRACTURED ROCK[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(11):2181-2188. |
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| Authors: | LIU Quansheng KANG Yongshui LIU Bin ZHU Yuanguang |
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| Affiliation: | (State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，;
Chinese Academy of Sciences，Wuhan，Hubei 430071，China) |
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| Abstract: | The problem of freezing-thawing damage of rock mass involves thermo-hydro-mechanical(THM) coupling at low temperature.Based on the phase transition theory and the energy conservation principle,the expression of frozen ratio is derived.Using the dual-porosity medium theory,the governing equations of THM coupling of freezing rock are obtained according to the law of mass conservation,the law of energy conservation and the principle of static equilibrium.Finally,considering the influence of freezing process on... |
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| Keywords: | rock mechanics freezing rock thermo-hydro-mechanical(THM) coupling phase transition dual-porosity medium |
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