| 糯扎渡水电站大坝应力变形及抗水力劈裂特性研究 |
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| 引用本文： | 雷红军,冯业林,刘兴宁.糯扎渡水电站大坝应力变形及抗水力劈裂特性研究[J].云南水力发电,2014(1):4-6,18. |
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| 作者姓名： | 雷红军 冯业林 刘兴宁 |
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| 作者单位： | [1]中国水电顾问集团昆明勘测设计研究院,云南 昆明650051 [2]云南省水利水电土石坝工程技术研究中心,云南 昆明650051 [3]国家能源水电工程技术研发中心高土石坝分中心,云南 昆明650051 |
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| 摘 要： | 心墙堆石坝初次蓄水是事故高发期，特别是蓄水速度较快时，可能对坝体的应力变形安全造成一些不利影响，如后期变形增加且稳定延长，甚至引起心墙水力劈裂发生裂缝。为确保大坝安全，需对初次蓄水速度进行深入研究。本文依托糯扎渡电站高心墙堆石坝工程，从大坝的应力变形及心墙的抗水力劈裂特性等方面研究了初次蓄水时的大坝安全特性，并提出蓄水速度建议。
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| 关 键 词： | 糯扎渡电站心墙堆石坝 蓄水速度 应力变形 抗水力劈裂 |
The Study on the Stress Deformation and Anti Hydraulic Fracturing Characteristics of the Dam of the Nuozhadu Hydropower Project |
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| Affiliation: | LEI Hong--jun, FENG Ye--lin. LIU Xing--ning (1. Kunming Hydroelectric Investigation, Design ＆ Research Institute, CHECC, Kunming, Yunnan 650051, China 2. Yunnan Provincial Water Conservancy Hydropower Earth--rock Dam Engineering Technical Research Center, Kunming, Yunnan 650051, China; 3. High Earth--rock Dam Branch, State Energy Hydropower Engineering Technical Research Development Center, Kunming, Yunnan 650051, China) |
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| Abstract: | The initial impounding of a core wall rockfill dam ,especially the impounding that takes place at a relatively high rate ,is the time when accidents would frequently happen ,which would probably cause certain adverse effect on stress deformation safety of the dam body ,for instance later deformation will in-crease and extend steadily and will even cause cracks due to core wall hydraulic fracturing .It is necessary to make a deep study on the initial impounding rate in order to ensure the dam safety .This paper studied the dam safety features and put forward the proposal of impounding rate in terms of the dam stress deform-ation and core wall hydraulic fracturing characteristic based on the high core wall rockfill dam of the Nuozhadu hydropower project . |
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| Keywords: | core wall rockfill dam of Nuozhadu hydropower project impounding rate stress deformation anti hydraulic fracturing |
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