| 周公宅拱坝混凝土温控防裂水管冷却效果研究 |
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| 引用本文： | 刘有志,朱岳明,刘桂友,徐建荣,何明杰.周公宅拱坝混凝土温控防裂水管冷却效果研究[J].水利水电科技进展,2006,26(2):44-48. |
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| 作者姓名： | 刘有志 朱岳明 刘桂友 徐建荣 何明杰 |
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| 作者单位： | 1. 河海大学水利水电工程学院,江苏,南京,210098
2. 华东勘测设计研究院,浙江,杭州,310014 |
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| 基金项目： | 水利部科技创新资助项目(SCXC2003-10)，河海大学院士学科发展基金资助项目(HHUYS003) |
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| 摘 要： | 采用改进的水管冷却温度场迭代算法,对周公宅拱坝7号典型岸坡坝段水管冷却的一期效果进行研究。重点分析水管层距、间距以及浇筑层厚度对坝体内部温度场和应力场分布造成的影响,同时指出岸坡坝段水管冷却时温控防裂的主要问题。最后得出了周公宅拱坝7号坝段施工期一期冷却时水管布置形式的优选方案及温控防裂措施。
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| 关 键 词： | 大体积混凝土 水管冷却 有限单元法 温度场 仿真计算 |
| 文章编号： | 1006-7647(2006)02-0044-05 |
| 修稿时间： | 2005年3月23日 |
Effect of pipe cooling for temperature control and crack prevention of Zhougongzhai Arch Dam |
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| LIU You-zhi,ZHU Yue-ming,LIU Gui-you,XU Jian-rong,HE Ming-jie.Effect of pipe cooling for temperature control and crack prevention of Zhougongzhai Arch Dam[J].Advances in Science and Technology of Water Resources,2006,26(2):44-48. |
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| Authors: | LIU You-zhi ZHU Yue-ming LIU Gui-you XU Jian-rong HE Ming-jie |
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| Abstract: | Based on the improved iteration algorithm for temperature field by pipe cooling,the effect of pipe cooling in the typical dam section No.7 along the slope of the Zhougongzhai Arch Dam in the first stage was investigated,with emphasis placed on the influences of horizontal and vertical spans of pipes and lift thickness on the stress field and temperature field of the dam body.Meanwhile,main problems on temperature control and crack prevention during pipe cooling were put forward.Finally,an optimal scheme for pipe layout during pipe cooling and measures for temperature control and crack prevention were obtained for the first construction stage of the dam section No.7 of the arch dam. |
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| Keywords: | mass concrete pipe cooling finite element method temperature field simulative computation |
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