| 边坡地震稳定性时程分析方法 |
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| 引用本文： | 刘汉龙,费康,高玉峰.边坡地震稳定性时程分析方法[J].岩土力学,2003,24(4):553-556. |
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| 作者姓名： | 刘汉龙 费康 高玉峰 |
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| 作者单位： | 河海大学 岩土工程研究所，江苏 南京 210098 |
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| 基金项目： | 江苏省自然科学基金资助项目(No. 2001018) |
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| 摘 要： | 考虑到在地震过程中，边坡的稳定安全系数最小值出现在某一瞬间，用这个值评价边坡在地震荷载作用下的抗滑稳定性不太合适，提出了用最小平均安全系数作为评价指标，并给出了相应的计算方法，即利用安全系数最大振幅的0.65倍作为平均振幅来反映安全系数随地震波动变化的过程。利用最小平均安全系数对某一堆石坝的动力抗滑稳定性进行了评价，并与拟静力法的结果进行了比较。
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| 关 键 词： | 堆石坝 地震反应分析 安全系数 |
| 文章编号： | 1000-7598-(2003)04-0553-05 |
| 收稿时间： | 2002-01-08 |
Time history analysis method of slope seismic stability |
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| LIU Han-long,FEI Kang,GAO Yu-feng.Time history analysis method of slope seismic stability[J].Rock and Soil Mechanics,2003,24(4):553-556. |
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| Authors: | LIU Han-long FEI Kang GAO Yu-feng |
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| Institution: | Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | The minimum slope stability safety factor occurs at one moment during the process of earthquake, it is unsuitable to evaluate the anti-slide stability of the slope under seismic load using this value. In this paper the minimum mean safety factor is presented as the evaluating index. The 0.65 times of the maximum amplitude of vibration of the safety factor is taken as the mean amplitude of vibration to evaluate the change of the safety factor with the ground motion time history. The anti-slide stability of a rockfill dam is evaluated by using the minimum mean safety factor. The result is compared with the one of the quasi-static method. |
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| Keywords: | rockfill dam seismic response analysis safety factor |
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