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| 高速公路泥岩边坡时效变形破坏机理分析 | |
| 引用本文： | 张斌,刘高,聂德新,符文熹,尚岳全.高速公路泥岩边坡时效变形破坏机理分析[J].岩石力学与工程学报,2003,22(12):1988-1993. |
| 作者姓名： | 张斌 刘高 聂德新 符文熹 尚岳全 |
| 作者单位： | 1. 成都理工大学工程地质研究所,成都,610059 2. 兰州大学,兰州,730000 3. 浙江大学土木工程学系,杭州,310027 |
| 基金项目： | 国家自然科学基金(49672166)资助项目。 |
| 摘 要： | 中国西部山区泥岩地层中修建高速公路，泥岩边坡常发生变形失稳破坏。基于大变形理论，采用完全非线性瞬态动力学分析方法，研究了泥岩边坡开挖前、开挖后暴雨产生孔隙水压力和孔隙水压力消散的时效变形过程，揭示了坡体开挖和孔隙水压力是边坡发生变形破坏的主要因素，为边坡的处治设计提供了理论依据。 |
| 关 键 词： | 高速公路 泥岩边坡 时效变形 大变形有限元 完全瞬态动力学 非线性 |
| 文章编号： | 1000-6915(2003)12-1988-06 |
| 收稿时间： | 2002-1-15 |
| 修稿时间： | 2002年1月15日 |
MECHANISM OF TIME-DEPENDENT DEFORMATION AND FAILURE OF MUDSTONE SLOPE OF EXPRESS HIGHWAY |
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| Zhang Bin,Liu Gao,Nie Dexin,Fu Wenxi,Shang Yuequan.MECHANISM OF TIME-DEPENDENT DEFORMATION AND FAILURE OF MUDSTONE SLOPE OF EXPRESS HIGHWAY[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(12):1988-1993. | |
| Authors: | Zhang Bin Liu Gao Nie Dexin Fu Wenxi Shang Yuequan |
| Affiliation: | Zhang Bin1,Liu Gao2,Nie Dexin1,Fu Wenxi3,Shang Yuequan3 |
| Abstract: | In the construction of express highways in mountainous areas in west China,landslide or failure of the mudstone slopes often occur. On the basis of large deformation theory,with the completely nonlinear transient dynamical analysis,the time-dependent deformation process is studied considering pore water pressure produced by downpour before and after excavation and the dissipation of pore pressure. It is revealed that the leading factor affecting slope stability is pore water pressure,which provides a basis for reinforcement measures. |
| Keywords: | mudstone slope time effect of deformation large deformation FEM full transient dynamics nonlinearity |
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