| 高寒地区公路涎流冰灾害及防治 |
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| 引用本文： | 陈安,彭振斌,杜长学,王继华.高寒地区公路涎流冰灾害及防治[J].现代地质,2006,20(1):181-184. |
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| 作者姓名： | 陈安 彭振斌 杜长学 王继华 |
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| 作者单位： | 中南大学地学与环境工程学院，湖南长沙410083 |
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| 摘 要： | 西藏浪卡子至洛扎公路是西藏山南地区环线公路的西段，全长120 km，集交通、外交、军事于一体。由于公路位于高寒、新构造运动强烈的地区，特殊的地质背景、气候因素和地理环境，为该地区地质灾害的发生孕育了良好的条件。涎流冰是指水在持续负温下随流随冻形成的积冰，水源和负温是涎流冰形成的先决条件。公路沿线有10处涎流冰灾害，影响的公路总长457 m。涎流冰灾害对公路的建设和运营构成了极大的危害，对其治理以防为主，采用涵洞或盲沟排水，同时必须防冻。
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| 关 键 词： | 涎流冰 特性 西藏 |
| 文章编号： | 1000-8527(2006)01-0181-04 |
| 收稿时间： | 09 15 2005 12:00AM |
| 修稿时间： | 12 15 2005 12:00AM |
Drift Ices along the Road Located in the Tableland Chilliness Mountain Area and Method to Deal with Them |
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| CHEN An,PENG Zhen-bin,DU Chang-xue,WANG Ji-hua.Drift Ices along the Road Located in the Tableland Chilliness Mountain Area and Method to Deal with Them[J].Geoscience——Journal of Graduate School,China University of Geosciences,2006,20(1):181-184. |
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| Authors: | CHEN An PENG Zhen-bin DU Chang-xue WANG Ji-hua |
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| Institution: | School of Geosciences and Environmental Engineering, Central South University, Changsha, Hunan410083, China |
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| Abstract: | The Langkazhi-Luoza Road is the west part of the ring road of Shannan district in Tibet,which is 120 km long.The road's functions are transportation,diplomacy and military affairs.The road is located in the(tableland),chilliness and intense neotectonic movement area.The geologic background,special climate and(geography) environment provide the conditions for geologic hazards occurring.Drift ice is accumulative ice that water become when it is flowing due to continuous minus temperature.Water and minus temperature are essential conditions for drift ice occurring.There are 10 drift ices along the Langkazhi-Luoza Road in Tibet,which threaten the road length 457 m seriously.According to the characters of the drift ice,the local environment and the road grade,the culvert or drain is the feasible effectual method to deal with it,but we must prevent the culvert or drain be freeze. |
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| Keywords: | drift ice character Tibet |
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