| 江坪河水电站无压泄洪洞衬砌混凝土冬季施工温控方案优选 |
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| 引用本文： | 贠元璐,段亚辉.江坪河水电站无压泄洪洞衬砌混凝土冬季施工温控方案优选[J].中国农村水利水电,2011(6). |
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| 作者姓名： | 贠元璐 段亚辉 |
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| 作者单位： | 水资源与水电工程科学国家重点实验室,武汉大学,武汉,430072 |
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| 摘 要： | 为研究江坪河水电站无压泄洪洞冬季施工温控防裂的问题,采用三维有限元法模拟施工过程与温控措施,对1.5 m厚衬砌混凝土冬季施工基本工况、基本工况表面保护、封闭洞口、延长拆模时间4种工况进行了仿真计算.综合分析比较各工况特定断面的表面点在不同时间的温度应力值,得出结论:在冬季施工中为有效防止混凝土温度裂缝的产生,对底板、边墙宜采取表面保温保护措施.江坪河泄洪洞冬季施工各工况的温控方案的优选,可以为泄洪洞衬砌混凝土施工提供参考,对提高施工质量,降低施工成本有着重要的意义.
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| 关 键 词： | 无压泄洪洞 衬砌混凝土 冬季施工 温控防裂 方案优选 |
Construction Project Optimization in Winter for Concrete Lining of the Non-pressure Spillway Tunnel in Jiangpinghe Power Station |
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| YUN Yuan-lu
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DUAN Ya-hui.Construction Project Optimization in Winter for Concrete Lining of the Non-pressure Spillway Tunnel in Jiangpinghe Power Station[J].China Rural Water and Hydropower,2011(6). |
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| Authors: | YUN Yuan-lu DUAN Ya-hui |
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| Institution: | YUN Yuan-lu,DUAN Ya-hui(National Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | In order to study the problems of preventing cracks in the construction of non-pressure spillway tunnel in winter in Jiangpinghe Power Station,a 3-D finite element analysis is made to simulate the construction process and the temperature controlling measures.Four working conditions of the 1.5-meter thick concrete lining in construction in winter are simulated.With a comprehensive analysis of and a comparison between the stresses of the representative point in different times of the specific section among th... |
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| Keywords: | non-pressure spillway tunnel concrete lining construction in winter temperature controlling and cracks preventing preference decision |
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