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《Journal of Glaciolgy and Geocryology》 2002-06
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Distributing Regularities of Subgrade Diseases in Permafrost Section of the Qinghai-Tibetan Highway

DOU Ming jian 1, HU Chang shun 1, HE Zi wen 2, ZHANG Yong qing 3 (1. College of Highway, Chang'an University, Xi'an Shaanxi 710064, China; 2. Communication Research Institute of Tibet, Lhasa Tibet 850000, China; 3. College of Continuing Education, Chang′an University, Xi′an Shaanxi 710064, China)  
In permafrost regions, there often appear settlement in the subgrade and cracks on the pavement; especially appear longitudinal cracks in the subgrade and pavement. It is recognized that distribution of these diseases relates to the stability of permafrost, the road building time, the height of the embankment and the exposure of the embankment. It is found that the settlement and longitudinal cracks are serious when the stability of permafrost is worse, the road building time was long before and the embankment slop is south exposure. The settlement will be more serious if the embankment is low. Meanwhile, the longitudinal crack will be more serious if the embankment is too high
【Fund】: 国家自然科学基金项目 ( 50 1780 10 )资助
【CateGory Index】: U416
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