摘要
达坂山公路隧道位于高海拔寒冷地区,自然条件非常独特(高寒、低氧、多雨雪、冬季较长等),地质条件又很复杂,这些不利因素为工程的设计和施工带来了许多新问题,最为突出的是:工程的冻害及水害的防治;隧道的开挖、贯通和营运,改变了原有的温度场、应力场和地下水的迳流排泄途径;传统施工方法受到挑战等.隧道工程的冻害及水害的防治是关系到隧道能否正常营运的关键.为了克服和解决以上问题,经过反复研究和论证,采取了必要的的工程措施和先进的施工方法,确保了该隧道的顺利竣工和正常营运,为建设同类隧道积累了宝贵的经验.
Dabanshan highway tunnel, a highest tunnel in the world, is located in the cold region. The natural conditions are very special, for example, high altitude, cold climate, low oxygen content, more precipitation, relatively long winter, and so on. The annual mean air temperature is - 3.1 ℃. The key engineering measures to keep the tunnel in normal work is how to control the damages caused by frost and water. Therefore, hard work was done by scientists from institutions of research, design and construc- tion for reasonable engineering measures, prevention countermeasures and construction methods in order to assure the tunnel to work normally.
出处
《冰川冻土》
CSCD
北大核心
2006年第6期833-837,共5页
Journal of Glaciology and Geocryology
基金
国家自然科学基金项目(40571068)
中国科学院知识创新工程重大项目(KZCX1-SW-04)
中国科学院寒区旱区环境与工程研究所知识创新工程项目(210089)资助
关键词
达坂山隧道
冻土工程问题
工程措施
Dabanshan Tunnel
problems of frozen soil engineering
engineering measure
