| 基于大变形理论的高土石坝坝坡稳定分析 |
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| 引用本文： | 张锐,迟世春,林皋.基于大变形理论的高土石坝坝坡稳定分析[J].水电能源科学,2007,25(6):54-57. |
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| 作者姓名： | 张锐 迟世春 林皋 |
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| 作者单位： | 大连理工大学,土木水利学院抗震研究所,辽宁,大连,116085 |
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| 基金项目： | 国家自然科学基金雅龙江水电联合基金重点项目 |
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| 摘 要： | 在考虑筑坝材料弹塑性变形即材料非线性和强度折减技术的基础上,引入考虑几何非线性理论更新的拉格朗日方法,对拟建的糯扎渡高土石坝上下游坝坡进行了抗震稳定分析,并将求得的坝坡临界安全系数、塑性区的发展过程与采用小变形理论计算结果进行对比。计算结果表明:运用大变形理论计算坝坡临界安全系数比用小变形理论约增加3%。
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| 关 键 词： | 高土石坝 强度折减法 抗震稳定分析 几何非线性 更新的拉格朗日方法 |
| 文章编号： | 1000-7709（2007）06-0054-04 |
| 收稿时间： | 2007-07-08 |
| 修稿时间： | 2007-09-03 |
Slope Stability Analysis of High Earth Rockfill Dam Based on Large Deformation Theory |
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| ZHANG Rui,CHI Shichun,LIN Gao.Slope Stability Analysis of High Earth Rockfill Dam Based on Large Deformation Theory[J].International Journal Hydroelectric Energy,2007,25(6):54-57. |
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| Authors: | ZHANG Rui CHI Shichun LIN Gao |
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| Abstract: | Based on the property of elastic plasticity deformation(material nonlinearity) and strength reduction technique,the updated lagrangion method with the geometric nonlinearity theory is applied to analyze the seismic stability of upstream and downstream slope of proposed Nuozhadu high earth rockfill dam.The dam slope critical safety factor and the development process of plastic zone obtained are compared with the results by the small deformation theory.The results show that the critical safety factor by the large deformation theory increases 3 percent around than that of obtained by the small deformation theory. |
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| Keywords: | high earth rockfill dam strength reduction technique seismic stability analysis geometric nonlinearity updated Lagrangian method |
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