| 长距离引水隧洞衬砌结构失事概率分析 |
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| 引用本文： | 连振宏,黄培志. 长距离引水隧洞衬砌结构失事概率分析[J]. 水科学与工程技术, 2013, 0(5): 82-86 |
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| 作者姓名： | 连振宏 黄培志 |
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| 作者单位： | 1. 天津大学 建筑工程学院,天津,300072
2. 深圳水利规划设计院,广东 深圳,518000 |
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| 摘 要： | 针对长距离引水隧洞的工程实际．综合考虑地质条件以及围岩和衬砌结构参数的不确定性．采用随机有限元方法分析确定不同类型的衬砌结构在不同围岩下的失事概率，再由隧洞沿程岩性的分布概率得到衬砌结构的选型不匹配概率．最终由全概率公式确定隧洞沿程衬砌结构的失事概率．从而有针对性地提高隧洞衬砌结构设计的安全性和可靠性。
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| 关 键 词： | 引水隧洞 地质岩性 衬砌结构 随机有限元 失事概率 |
Breakage Probability Assessment of Long Diversion Tunnel Lining Structure Considering Geologic Uncertainty |
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| LIAN Zhen-hong , HUANG Pei-zhi. Breakage Probability Assessment of Long Diversion Tunnel Lining Structure Considering Geologic Uncertainty[J]. Water Sciences and Engineering Technology, 2013, 0(5): 82-86 |
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| Authors: | LIAN Zhen-hong HUANG Pei-zhi |
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| Affiliation: | 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Shenzhen Water Planning and Design Institute, Shenzhen 518000, China) |
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| Abstract: | For long-distance diversion tunnel engineering practice, considering the uncertainty of the geological conditions and the parameter of the surrounding rock and lining structure, taking advantage of the stochastic finite element analysis to ascertain the breakage probability of the different types of lining structure under the different rock, and the probability of structure type incorrect selection is determined by the distribution probability of tunnel along the lithology. Finally, we can obtain the structure breakage probability by the formula of full probability at anywhere along the tunnel, which can be targeted to improve the safety and reliability of the tunnel lining structure design and provide the basis for project risk prevention. |
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| Keywords: | diversion tunnel geologic lithology lining structure stochastic finite elements breakage probability |
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