| 基坑挡土墙上土压力荷载的可靠度分析 |
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| 作者姓名： | 闫强刚 左红伟 |
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| 作者单位： | 同济大学地下建筑与工程系，同济大学地下建筑与工程系 上海 200092，上海 200092 |
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| 摘 要： | 根据朗金土压力公式,以常规设计为基础,建立了分步开挖、无粘性土时主动土压力荷载增加的极限状态方程:采用可靠度分析的AFOSM法,分析了分步开挖时土压力计算中应注意的问题。并分析研究了土性参数对土压力计算可靠性的影响,最后得出了四点结论。
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| 关 键 词： | 土压力 极限状态方程 可靠度分析 分步开挖 |
Reliability Analysis of Earth Pressure on Retaining Wall |
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| Authors: | Yan Qianggang Zuo Hongwei |
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| Abstract: | In this paper,a limit state function for active earth pressure of second-step excavation is established on the basis of conventional design, according to Rankine earth pressure formula. Some problems in step-excavation are anly-sised by AFOSM method ,and the effects of earth parameters on earth pressure's reliability analysis are also studied in this paper. Finally,several useful conclusions are proposed. |
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| Keywords: | earth pressure limit state function reliability analysis step-excavation |
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