| 桩端下伏溶洞顶板稳定非概率可靠性分析方法 |
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| 引用本文： | 龚先兵,赵明华,张永杰. 桩端下伏溶洞顶板稳定非概率可靠性分析方法[J]. 湖南大学学报(自然科学版), 2011, 38(1): 13-17 |
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| 作者姓名： | 龚先兵 赵明华 张永杰 |
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| 作者单位： | 1. 湖南大学,岩土工程研究所,湖南,长沙,410082;湖南省高速公路管理局,湖南,长沙,410001
2. 湖南大学,岩土工程研究所,湖南,长沙,410082 |
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| 基金项目： | 国家自然科学基金资助项目(50878083) |
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| 摘 要： | 针对桩端下伏溶洞顶板稳定性分析中所具有的不确定性,采用区间数表示计算参数不确定性取值,并综合运用区间数学理论、岩体质量分类指标RMR以及Hoek-Brown经验强度准则建立参数区间数确定方法.在现有研究基础上建立同时考虑抗冲切、抗剪与抗弯作用的桩端下伏溶洞顶板极限平衡分析模型.在探讨功能函数的合理确定方法基础上,采用非...
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| 关 键 词： | 岩土工程 岩溶 基桩 区间数 非概率可靠性 |
Non-probabilistic Reliability Analysis Method of Karst Roof Stability under Pile Tip |
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| GONG Xian-bing,ZHAO Ming-hua,ZHANG Yong-jie. Non-probabilistic Reliability Analysis Method of Karst Roof Stability under Pile Tip[J]. Journal of Hunan University(Naturnal Science), 2011, 38(1): 13-17 |
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| Authors: | GONG Xian-bing ZHAO Ming-hua ZHANG Yong-jie |
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| Affiliation: | GONG Xian-bing1,2,ZHAO Ming-hua1,ZHANG Yong-jie1(1.Institute of Geotechnical Engineering,Hunan Univ,Changsha,Hunan 410082,China,2.Hunan Expressway Administration Bureau,Hunan 410001,China) |
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| Abstract: | There is uncertainty in the analysis of the stability of karst roof under pile tip.The interval numbers were used to express the calculation parameters.And the method to determine the interval numbers was proposed by the comprehensive application of interval mathematical theory,rock mass rating index(RMR) and Hoek-Brown empirical strength criterion.Secondly,the limit equilibrium analysis model of karst roof under pile tip was presented on the basis of the present study.The model can consider the action of p... |
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| Keywords: | geotechnical engineering karst pile interval number non-probabilistic reliability |
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