| 涂劲,周立本,李德玉,侯顺载.重力坝深层抗滑稳定研究[J].水利学报,2003,34(10):0096-0100 |
| 重力坝深层抗滑稳定研究 |
| Study on stability against sliding at deep level of foundation in gravity dam |
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| DOI： |
| 中文关键词: 重力坝 抗滑稳定 非线性有限元 软弱结构面 |
| 英文关键词: gravity dam stability against sliding deep level nonlinear FEM foft strata |
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| 中文摘要: |
| 对地质条件复杂的某重力坝工程挡水坝段，以非线性有限元法进行静力荷载作用下的深层抗滑稳定研究，揭示了由于基岩内部软弱结构面的存在和变形而使地基逐步破坏并导致坝体和地基最终失稳的机理。与刚体极限平衡法分析结果相比较，指出后者的局限性及其原因。同时建议对将发生大变形为滑裂体提供运动空间的软弱带直接进行加固，这一措施可有效防止重力坝的深层抗滑失稳。 |
| 英文摘要: |
| The nonlinear FEM is applied to study the stability against sliding at deep level of foundation in a gravity dam with complicated geological structure, under the action of static load. The mechanism of sliding due to soft strata and deformation is revealed. The result is compared with that by means of rigid body limit equilibrium method and the irrationality of later is analyzed. A reasonable foundation treatment scheme is suggested to ensure the stability against sliding of dam and its foundation. |
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