| 岩石统计渗流模型和统计损伤本构模型研究 |
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| 引用本文： | 韦立德,杨春和,徐卫亚.岩石统计渗流模型和统计损伤本构模型研究[J].岩土力学,2004,25(10):1527-1530. |
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| 作者姓名： | 韦立德 杨春和 徐卫亚 |
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| 作者单位： | 1.中科院武汉岩土力学研究所，湖北 武汉 430071 2.河海大学 岩土工程研究所，江苏 南京 210098 |
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| 基金项目： | 国家重点基础研究发展规划项目(973)(No.2002CB412704)，国家自然科学基金(No.50374064，No.50334060)资助。 |
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| 摘 要： | 采用Eshelby等效夹杂方法建立考虑渗流的岩石损伤本构模型是一种有效方法，但相关文献目前还极少。利用细观力学的Eshelby等效夹杂方法, 探索了考虑渗流和损伤的Helmholtz自由比能函数的确定，用连续介质损伤力学方法建立了相应的考虑渗流的岩石损伤统计本构模型，提出了考虑渗流和损伤过程的岩石破坏准则，建议了考虑损伤和应变的岩石渗透系数演化方程。与试验结果比较表明，所建立模型是合理的。
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| 关 键 词： | 岩石 渗流 损伤 本构模型 破坏准则 |
| 文章编号： | 1000-7598-(2004)10-1527-04 |
| 收稿时间： | 2004-05-12 |
Study on statistical seepage model and statistical damage constitutive model of rock |
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| WEI Li-de,YANG Chun-he,XU Wei-ya.Study on statistical seepage model and statistical damage constitutive model of rock[J].Rock and Soil Mechanics,2004,25(10):1527-1530. |
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| Authors: | WEI Li-de YANG Chun-he XU Wei-ya |
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| Institution: | 1. Institute of Rock and Soil Mechannics, Chinese Academy of Science, Wuhan 430071, China； 2.Research Institute of Geotechnical Engineering Hohai University, Nanjing 210098, China |
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| Abstract: | The Eshelby equivalent inclusion method is a effective method to establish the constitutive models for seeping damage rock. There are a few paper discussed using Eshelby equivalent inclusion method to establish the constitutive models until now..Using Eshelby equivalent inclusion method, a Helmholtz free energy for seeping damage rock is set up in this paper. A constitutive model for seeping damage rock is resulted from the Helmholtz free energy function with the theory of continuum damage mechanics. A failure rule for seeping damage rock is brought up. Then a statistical seepage model for rock is proposed. The presented models are verified as reasonable and practical by compared with the experiment data. |
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| Keywords: | rock seepage damage constitutive model failure rule |
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