| 大U形渠道冻胀机理试验研究 |
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| 引用本文： | 陈涛,王正中,张爱军.大U形渠道冻胀机理试验研究[J].灌溉排水学报,2006,25(2):8-11. |
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| 作者姓名： | 陈涛 王正中 张爱军 |
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| 作者单位： | 西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100 |
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| 摘 要： | 渠道衬砌的冻胀破坏是温度、水分、土质和冻胀力等因素共同作用的结果,是北方地区渠道的主要破坏形式。通过对大U形渠道的冻胀观测试验,对衬砌的气温、地温,渠基土的含水率、冻深以及衬砌的冻胀变形量等实验数据统计比较,分析了渠道衬砌的主要破坏时段和破坏部位的分布规律及其形成原因,提出了相应措施,为进一步完善渠道衬砌冻害机理的理论研究提供了科学依据。
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| 关 键 词： | 冻土 渠道 冻胀破坏 原型观测试验 |
| 文章编号： | 1000-646X（2006）02-0008-04 |
| 收稿时间： | 2005-09-19 |
| 修稿时间： | 2005-09-19 |
The Test for Frost Heaving Damage Mechanism in U-shape Channel |
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| CHEN Tao,WANG Zheng-zhong,ZHANG Ai-jun.The Test for Frost Heaving Damage Mechanism in U-shape Channel[J].Journal of Irrigation and Drainage,2006,25(2):8-11. |
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| Authors: | CHEN Tao WANG Zheng-zhong ZHANG Ai-jun |
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| Institution: | College of Water Conservancy and Architectural Engineering, Northwest Sci-tech University of Agriculture and Forestry, Yangling 712100, China |
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| Abstract: | The frost heaving damage is main damage form of lining channel in north China,which is an integrative result of temperature,water content,soil characteristic and frost force.The paper compared the relationship of the damage factor of lining channel including local temperature,ground temperature in different depth,water content and frozen depth of foundation soil and frozen heaving deformation after the prototype observation test of frozen heaving damage in U-shape channel,analyzed the main damage period and the distribution rule of damaged position of U-shape channel,and explaining the reason of these causes.The conclusion could provide some science basis for the research of this problem in future. |
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| Keywords: | frozen soil channel frozen heaving damage prototype observation test |
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