青藏高速公路修筑对冻土工程走廊的热力影响及环境效应

doi:10.11867/j.issn.1001-8166.2017.05.0459

地球科学进展 ›› 2017, Vol. 32 ›› Issue (5): 459 -464. doi: 10.11867/j.issn.1001-8166.2017.05.0459

所属专题：青藏高原研究——青藏科考；

青藏高速公路修筑对冻土工程走廊的热力影响及环境效应

马巍 ¹(

), 穆彦虎 ¹, 谢胜波 ^1, ², 毛云程 ¹, 陈敦 ¹

1. 冻土工程国家重点实验室中国科学院西北生态环境资源研究院(筹),甘肃兰州 730000
2.沙漠与沙漠化重点实验室中国科学院西北生态环境资源研究院(筹),甘肃兰州 730000

收稿日期:2017-01-20 修回日期:2017-03-26 出版日期:2017-05-20
基金资助:
国家自然科学基金重点项目“青藏高速公路修筑对冻土工程走廊的热力影响及环境效应”(编号:41630636);国家重点基础研究发展计划项目“青藏高原重大冻土工程的基础研究”(编号:2012CB026100)资助

Thermal-mechanical Influences and Environmental Effects of Expressway Construction on the Qinghai-Tibet Permafrost Engineering Corridor

Wei Ma ¹( ), Yanhu Mu ¹, Shengbo Xie ^1, ², Yuncheng Mao ¹, Dun Chen ¹

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

Received:2017-01-20 Revised:2017-03-26 Online:2017-05-20 Published:2017-05-20
About author:
First 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
Supported by:
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)

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青藏工程走廊是连接西藏与内地的战略通道,已建数条重大工程聚集于这一狭窄地质环境脆弱敏感带内。随着西藏自治区新一轮的经济发展,包括青藏高速公路、铁路复线、高压输变电线路等重大线性工程已纳入到国家相关发展规划中,尤其青藏高速公路的建设迫在眉睫。廊内控制性环境地质问题是冻土,重大工程建设在受到冻土地质环境制约的同时,也将产生显著的环境效应,且随着走廊工程布局的日益密集,构筑物群相互热影响及对走廊冻土地质环境的扰动将日益突显。面对这一问题,在国家自然科学基金重点项目支持下,开展“青藏高速公路修筑对冻土工程走廊的热力影响及环境效应”研究。从项目的研究意义、拟解决的关键科学问题、主要研究内容和预期目标4个方面进行介绍,以期为相关科研、工程技术人员提供参考。

关键词: 青藏工程走廊, 冻土地质环境, 工程活动, 相互作用, 热力格局

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: Qinghai-Tibet engineering corridor, Permafrost geologic environment, Engineering activities, Interaction, Thermal-force regime.

中图分类号:

P642.14

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