| 王媛,姜 朴,朱俊高,孔彩粉.松粉砂地基地震后堤坝稳定性分析[J].水利学报,2000,31(11):0060-0065 |
| 松粉砂地基地震后堤坝稳定性分析 |
| Post-earthquake stability analysis of dike built on silty sand foundation |
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| DOI： |
| 中文关键词: 稳态强度 堤坝稳定 液化 地震后分析 |
| 英文关键词: steady state strength stability dike post-earthquake analysis liquefaction |
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| 中文摘要: |
| 本文在试验研究松砂静动力孔压上升曲线、不排水剪切过程中应力应变软化曲线和稳态强度等的基础上，基于地震结束后应力、孔压重分布的思想，采用有效应力有限元法，对某一堤坝及坝基进行了地震后液化区扩展及整体稳定性分析，表明本文所建议方法的可行性，揭示了进行地震后液化分析和安全性评价的重要性。 |
| 英文摘要: |
| On the basis of experimental research on strain-softening behavior of loose sand under undrained condition,the steady-state strength concept and a strain-softening model are proposed.The effective stress FEM is adopted to analyze the post-earthquake stability of the liquefaction expanding zone as well as the whole section of a typical dike including its foundation,in consideration of the redistribution of stress and pore-water pressure.The result shows that the proposed method is feasible for practical use. |
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