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Advances in Earth Science  2017, Vol. 32 Issue (5): 459-464    DOI: 10.11867/j.issn.1001-8166.2017.05.0459
    
Thermal-mechanical Influences and Environmental Effects of Expressway Construction on the Qinghai-Tibet Permafrost Engineering Corridor
Ma Wei1, Mu Yanhu1, Xie Shengbo1, 2, Mao Yuncheng1, Chen Dun1
1.State Key Laboratory of Frozen Soil Engineering,Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
2.Key Laboratory of Desert and Desertification/ Dunhuang Gobi and Desert Research Station/Gansu Center for Sand Hazard Reduction Engineering and Technology, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
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Abstract  The Qinghai-Tibet Engineering Corridor (QTEC) is a strategic passage between Tibet and central China. In the past half century, several major projects have been built in this narrow corridor with vulnerable geoenvironment. Along with a new round of economic development of the Tibet autonomous region, some major linear projects including expressway, double-tracking railway, high voltage power transmission line have been incorporated into the national development planning within the corridor, and especially the expressway construction is imminent now. In the QTEC, permafrost is a controlling factor of geological environment, which will impose great restrictions on engineering construction. In turn, engineering construction will induce significant effects on permafrost geological environment. With more and more linear infrastructures crowding into the QTEC, the thermal interaction among permafrost engineering and engineering disturbance on permafrost thermal-mechanical regime will be more significant. With respect to this issue, a research program focusing on thermal-mechanical influences and environmental effects of expressway construction on the Qinghai-Tibet permafrost engineering corridor was started and supported by the National Natural Science Foundation of China. In this paper, the research significance, key scientific issues, main research contents and goals of the program are introduced so as to provide some references for related researchers and engineers.
Key words:  Engineering activities      Qinghai-Tibet engineering corridor      Thermal-force regime.      Permafrost geologic environment      Interaction     
Received:  20 January 2017      Published:  20 May 2017
ZTFLH:  P642.14  
Fund: Project supported by the National Natural Science Foundation of China “Thermal-mechanic influences and environment effects of the Qinghai-Tibet expressway construction on the permafrost engineering corridor”(No.41630636); The National Key Basic Research Program of China “Basic research on the major permafrost projects in the Qinghai-Tibet Plateau”(No.2012CB026100)
About author:  Ma Wei(1963-), male, Tianshui City, Gansu Province, Professor. Research areas include frozen soil mechanics and permafrost engineering.E-mail:mawei@lzb.ac.cn
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Mu Yanhu
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Ma Wei, Mu Yanhu, Xie Shengbo, Mao Yuncheng, Chen Dun. Thermal-mechanical Influences and Environmental Effects of Expressway Construction on the Qinghai-Tibet Permafrost Engineering Corridor. Advances in Earth Science, 2017, 32(5): 459-464.

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http://www.adearth.ac.cn/EN/10.11867/j.issn.1001-8166.2017.05.0459     OR     http://www.adearth.ac.cn/EN/Y2017/V32/I5/459

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