| 寒区冬季输水渠道冻胀破坏机制与防治--以新疆乌什水水库引水渠为例 |
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| 引用本文： | 曹兴山,陈志孟.寒区冬季输水渠道冻胀破坏机制与防治--以新疆乌什水水库引水渠为例[J].地质灾害与环境保护,2005,16(4):405-409. |
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| 作者姓名： | 曹兴山 陈志孟 |
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| 作者单位： | 1. 甘肃省地矿局水文地质工程地质勘察院,甘肃张掖,734000
2. 新疆建设兵团农九师监理公司,新疆额敏,834601 |
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| 摘 要： | 额敏县乌什水水库引水渠位于新疆北部，地基基础属季节性冻土。冬冻夏融，呈季节性变化。冬季输水受渠道渗漏影响，沿渠道两侧形成上层滞水的季节含水层。每年冬季降温期间，渠道砼板在冻结层冻胀力和渠水表层冻结冰的冰撑力综合作用下遭受冻胀破坏，严重威胁季节性冻土区渠道输水安全。通过对水工建筑物冻害调查、研究、观测，提出如下综合防治方案：选择防渗措施，减少渠道渗漏；夯实渠道基础，置换下垫土石；采取保温措施，抵御冻胀破坏；改变设计结构，提高抗冻害能力。
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| 关 键 词： | 新疆额敏 冻胀力 冻胀量 冻结层 湿陷性黄土 融冻 |
| 文章编号： | 1006-4362（2005）04-0405-05 |
| 收稿时间： | 2004-11-11 |
| 修稿时间： | 2004-11-112005-01-25 |
PREVENTION AND CURE OF BREAKING OF THE WATER CANALL IN THE WINTER OF FRIGID AREAS--an example in Wushishui water canal, Xinjiang |
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| CAO Xing-shan,CHEN Zi-neng.PREVENTION AND CURE OF BREAKING OF THE WATER CANALL IN THE WINTER OF FRIGID AREAS--an example in Wushishui water canal, Xinjiang[J].Journal of Geological Hazards and Environment Preservation,2005,16(4):405-409. |
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| Authors: | CAO Xing-shan CHEN Zi-neng |
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| Institution: | 1. No. 2 Geol. Team of Hydrogeol. Engine. ,Bureau of Geol. and Miner. Res. of Gansu Prov. ,Zhangyi 734000,China; 2. Yinhe Water Conservancy Project Supervison Limited Corporation of Xinjiang Province,Emin 834601,China |
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| Abstract: | Wushishui water canal is located in the north of Xinjiang.The groundfoundation belongs to frozen earth.During the winter,soil freezing put pressure on the canal and breaking the canal.Prevention and cure measures are suggested for resisting frost-freezing destroy: lessening canal seepage;strengthening the foundation of the canal,displacement the base earth,heat preservation,modifying the design of structure. |
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| Keywords: | Xinjiang frost-freezing destroy the water canal |
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