| 南水北调中线输水工程若干冰力学问题试验研究 |
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| 引用本文： | 徐国宾,李大冉,黄焱,赵新.南水北调中线输水工程若干冰力学问题试验研究[J].水科学进展,2010,21(6):808-815. |
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| 作者姓名： | 徐国宾 李大冉 黄焱 赵新 |
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| 作者单位： | 天津大学建筑工程学院, 天津, 300072 |
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| 基金项目： | "十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 通过在低温冰工程实验室进行的冰力学模型试验,研究了南水北调中线工程冰期输水中的若干冰力学问题,主要包括:冰的膨胀力、冰盖稳定性和浮冰对闸墩的撞击力.试验结果给出了冰的膨胀力变化典型时程曲线、不同厚度冰盖的膨胀力极值变化;不同厚度的冰盖随水位下降的最大塌落值;以及冰排对闸墩的撞击力的冰力时程曲线、冰力极值随冰速的变化曲线.这些试验成果可为南水北调中线工程冰期输水安全运行提供参考.
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| 关 键 词： | 南水北调中线 输水工程 冰力学模型试验 冰膨胀力 冰盖稳定性 浮冰撞击力 |
| 收稿时间： | 2009-11-17 |
Laboratory study of problems in ice mechanics encountered in the Middle Route of South-to-North Water Transfer Project |
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| XU Guo-bin,LI Da-ran,HUANG Yan,ZHAO Xin.Laboratory study of problems in ice mechanics encountered in the Middle Route of South-to-North Water Transfer Project[J].Advances in Water Science,2010,21(6):808-815. |
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| Authors: | XU Guo-bin LI Da-ran HUANG Yan ZHAO Xin |
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| Institution: | College of Civil Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Problems in ice mechanics encountered in the Middle Route of South North Water Transfer Project are studied throughice expermients conducted in a low temperature laboratory.The expermients mainly concentrate on the expansive force of the ice,the stability of the ice cover,and the ice force on piers.As the result,a force tmie curve for the change in the expansive force of the ice is obtained,and so does for the change in extremes of the ice expansive force withice thicknesses.The change in ice collapse maxmia is observed for different ice thicknesses as well as for the force time curve for theice force on piers.The change in extremes of the ice force with ice speeds is also meas ured.Our results would contribute to the safe operation of the Middle Route of the South to North Water Tansfer Project in winters. |
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| Keywords: | theM iddle Route of the South to North Water Transfer Project transfer water project ice mechanics laboratory modeling ice expansive force stability of ice cover ice force on piers |
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