| 基于风险效益平衡的混凝土坝寿命评估理论及其应用 |
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| 引用本文： | 姚虞,武明鑫,周兴波,杨娟丽. 基于风险效益平衡的混凝土坝寿命评估理论及其应用[J]. 水力发电, 2022, 48(3): 48-52 |
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| 作者姓名： | 姚虞 武明鑫 周兴波 杨娟丽 |
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| 作者单位： | 水电水利规划设计总院,北京100120;中国水利电力对外有限公司,北京101199 |
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| 摘 要： | 大坝服役达到设计使用年限之后将面临退役,科学评定大坝寿命是坝工界的新问题.从风险效益综合分析的角度,提出了确定大坝寿命的风险效益平衡准则,构建了混凝土坝寿命评估的理论框架;在简化假设条件下,提出了参数意义明确、物理量易于得到的概化数学模型,并以大渡河流域梯级水电站凝土坝为例进行了寿命计算,结果验证了模型的可行性,可供混...
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| 关 键 词： | 混凝土坝 寿命评估 风险效益平衡 概化数学模型 |
Lifespan Evaluation Theory of Concrete Dam Based on Risk-Benefit Balance and Its Application |
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| YAO Yu,WU Mingxin,ZHOU Xingbo,YANG Juanli. Lifespan Evaluation Theory of Concrete Dam Based on Risk-Benefit Balance and Its Application[J]. Water Power, 2022, 48(3): 48-52 |
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| Authors: | YAO Yu WU Mingxin ZHOU Xingbo YANG Juanli |
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| Affiliation: | (China Renewable Energy Engineering Institute,Beijing 100120,China;China International Water&Electric Corp,Beijing 101199,China) |
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| Abstract: | A dam will be decommissioned after a certain period of service.How to scientifically determine the lifespan of a dam is a new issue in dam industry.From the perspective of comprehensive analysis of risk and benefit,the risk-benefit balance criterion is put forward to determine the life of concrete dam,and the theoretical framework of lifespan evaluation of concrete dam is constructed.Then,under simplifying assumptions,a generalized mathematical model with clear parameter meaning and easily accessible physical quantity is proposed,and the lifespans of concrete dams in Dadu River Basin are calculated as examples.The research achievements can be used for reference in life evaluation of concrete dams. |
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| Keywords: | concrete dam lifespan evaluation risk-benefit balance generalized mathematical model |
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