| 大型U型渡槽正常运行期寒潮降温影响分析 |
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| 引用本文： | 姚雄,赵海涛,王潘绣.大型U型渡槽正常运行期寒潮降温影响分析[J].山西建筑,2011,37(36):197-198. |
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| 作者姓名： | 姚雄 赵海涛 王潘绣 |
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| 作者单位： | 1. 南水北调中线干线工程建设管理局,北京,100038
2. 河海大学土木与交通学院,江苏南京,210098 |
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| 摘 要： | 重点分析了不同降温幅度及降温速率对大型U型混凝土渡槽温度场影响,计算结果表明,秋冬季寒潮降温可能导致槽身出现较大的内外温差及温度梯度,导致出现裂缝,影响渡槽正常使用,应采取必要的保温措施以抵御寒潮袭击。
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| 关 键 词： | U型渡槽 寒潮 温度场 降温幅度 降温速率 |
Analysis on impacts of cold wave cooling to normal large-scale U-shaped flume operation |
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| YAO Xiong ZHAO Hai-tao WANG Pan-xiu.Analysis on impacts of cold wave cooling to normal large-scale U-shaped flume operation[J].Shanxi Architecture,2011,37(36):197-198. |
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| Authors: | YAO Xiong ZHAO Hai-tao WANG Pan-xiu |
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| Affiliation: | YAO Xiong ZHAO Hai-tao WANG Pan-xiu |
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| Abstract: | This paper mainly analyzes impacts of different cooling range and cooling rate on temperature field of large-scale U-shaped concrete flume.Calculation results show that: autumn and winter cold wave cooling may lead to great internal and external temperature difference and temperature gradient of the flume,and lead to cracks,impacts normal usage of the flume.Therefore,it is necessary to take thermal insulation measures to prevent cold wave attack. |
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| Keywords: | U-shaped flume cold wave temperature field cooling range cooling rate |
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