| 基于上限定理的抗滑群桩设计理论研究 |
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| 引用本文： | 何思明,罗渝.基于上限定理的抗滑群桩设计理论研究[J].自然灾害学报,2010(5). |
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| 作者姓名： | 何思明 罗渝 |
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| 作者单位： | 中国科学院山地灾害与地表过程重点实验室;中国科学院-水利部成都山地灾害与环境研究所; |
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| 基金项目： | 国家重点基础研究发展计划资助项目(2008CB425802); 国家自然科学基金项目(40872181、40572158); 交通部西部科技项目(2008-318-792-85) |
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| 摘 要： | 针对抗滑群桩设计理论方面存在的问题,即荷载传递及滑坡推力分配的不确定性,基于极限分析的上限定理,给出了一种抗滑群桩的设计方法,即人为增大第一排抗滑桩的桩间距,并按极限土压力公式设计,作用在第二排抗滑桩上的荷载则按照上限定理给出。根据上述思想,并结合滑坡能量安全系数的定义和多块体体系速度场计算方法,提出了抗滑群桩的一种设计理论。
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| 关 键 词： | 上限定理 抗滑群桩 设计 极限状态 |
A new design method of ant:-slide group piles based on upper limite theorem |
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| HE Si-ming,LUO Yu.A new design method of ant:-slide group piles based on upper limite theorem[J].Journal of Natural Disasters,2010(5). |
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| Authors: | HE Si-ming LUO Yu |
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| Institution: | HE Si-ming,LUO Yu (1.Key Laboratory of Mountain Hazards and Surface Process,Chinese Academy of Science,Chengdu 610041,China,2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,China) |
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| Abstract: | In view of uncertainty of load transfer and landslide thrust distribution in design theory of anti-slide group piles and based on the plastic limit upper bound theorem,a new design method of anti-slide group piles was put forward.The method includes enlarging the space between the first row of anti-slide plies,and then using limit earth pressure formula to design.The load that acts on second row of anti-slide piles will be obtained by the plastic limit upper bound theorem.According to these ideals,and combi... |
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| Keywords: | upper bound theorem anti-slide group piles design limit state |
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