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| Interaction study of permafrost and highway along Qinghai-Xizang Highway | |
| 引用本文： | 吴青柏,施斌,刘永智. Interaction study of permafrost and highway along Qinghai-Xizang Highway[J]. 中国科学D辑(英文版), 2003, 46(2): 97-105. DOI: 10.1360/03yd9009 |
| 作者姓名： | 吴青柏 施斌 刘永智 |
| 作者单位： | ACEI，Department of Earth Science，Nanjing University，ACEI，Department of Earth Science，Nanjing University，State Key Laboratory of Frozen Soil Engineering，Cold and Arid Regions Environmental and Engineering Re-search Institute，Chinese Academy of Sciences Nanjing 210093，China State Key Laboratory of Frozen Soil Engineering，Cold and Arid Regions Environmental and Engineering Re-search Institute，Chinese Academy of Sciences，Lanzhou 730000，China，Nanjing 210093，China，Lanzhou 730000，China |
| 基金项目： | the National Natural Science Foundation of China (Grant No. 90102006)，Key Project of CAS(KZCX-SW-04)，the Innovation Project of CAREERI (CACX210047 and CACX210086) and Post Doctoral Fund of Nanjing Unive |
| 摘 要： | Qinghai-Xizang Highway crosses permafrost areas, sporadic permafrost areas and seasonal frozen soil areas. It is very important to study the engineering geology of frozen soil in construc-tion of cold regions engineering, and the choices of engineering st… |
Interaction study of permafrost and highway along Qinghai-Xizang Highway |
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| Wu Qingbai , Shi Bin and Liu Yongzhi. Interaction study of permafrost and highway along Qinghai-Xizang Highway[J]. Science in China(Earth Sciences), 2003, 46(2): 97-105. DOI: 10.1360/03yd9009 | |
| Authors: | Wu Qingbai Shi Bin Liu Yongzhi |
| Affiliation: | 1. ACEI, Department of Earth Science, Nanjing University, Nanjing 210093, China;State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China 2. ACEI, Department of Earth Science, Nanjing University, Nanjing 210093, China 3. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
| Abstract: | Eight monitoring sites are set along the Qinghai-Xizang Highway (QXH) to investigate the characteristics and process of interaction between permafrost and highway, including the up-per and down boundaries of active layer under natural surface, seasonally freezing-thawing depth under asphalt pavement, permafrost table temperature and roadbed stability. The investigation results show that the changes of active layer thickness and permafrost table temperature under asphalt pavement are greater than these under natural surface due to the absorbing heat action and less evaporation of asphalt pavement, as a result, the engineering geological problems such as thaw settlement and frost heave present frequently along QXH line and produce the adverse impact on roadbed stability. |
| Keywords: | permafrost asphalt pavement freezing-thawing monitoring site Qinghai-Xizang Highway. |
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