| 软岩蠕变过程中单相渗流固流耦合及数学模型 |
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| 引用本文： | 杨彩弘,王永岩,魏佳. 软岩蠕变过程中单相渗流固流耦合及数学模型[J]. 黑龙江科技学院学报, 2004, 14(5): 297-299 |
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| 作者姓名： | 杨彩弘 王永岩 魏佳 |
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| 作者单位： | 辽宁工程技术大学,力学与工程科学系,辽宁,阜新,123000 |
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| 摘 要： | 针对隧道开挖后因渗流路径的增加而改变围岩的含水状态，使围岩的蠕变变形规律发生改变的现象，根据岩土流变力学和渗流力学理论，对含水率的变化对软岩蠕变变形规律及其本构方程的影响进行了研究，并在此基础上建立了单相流体在蠕变变形多孔介质(均质、各相同性的Bu体软岩)中流动时的固流耦合模型。结果表明，固流耦合是软岩蠕变变形非线性的重要影响因素。
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| 关 键 词： | 蠕变 弹性模量 黏度系数 固流耦合 数学模型 |
| 文章编号： | 1671-0118(2004)05-0297-03 |
Solid-fluid coupling phenomenon of one-phase fluids flow and mathematical model during creep of soft rocks |
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| YANG Caihong,WANG Yongyan,WEI Jia. Solid-fluid coupling phenomenon of one-phase fluids flow and mathematical model during creep of soft rocks[J]. Journal of Heilongjiang Institute of Science and Technology, 2004, 14(5): 297-299 |
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| Authors: | YANG Caihong WANG Yongyan WEI Jia |
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| Abstract: | Aimed at the changes in the water content of engineering wall rock subjected to tunnel excavation because of the increase in paths of groundwater seepage and at changes in the creep laws of engineering wall rocks, the paper offers a study of the effect of the changes of water content works on the creep deformation law of soft rock and its constitutive equation. The paper gives a mathematical model of solid-fluid coupling of one-phrase fluid flowing in porous media of creep deformation (the medium is material Bu of uniformity, isotropy). The result shows that solid-fluid coupling is an important factor affecting non-linear property of soft rock creep. |
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| Keywords: | creep elastic modulus viscosity coefficient solid-fluid coupling mathematical model |
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