摘要
本文针对青藏铁路管道通风路堤对于保护多年冻土的工程效果 ,基于试验段在近 2个冻融循环周期内的温度监测资料 ,初步分析了路堤填土下土体温度的发展特征 ,并对通风管铺设高度的影响进行了讨论。结果表明 ,通风管路堤具有保护多年冻土的作用 。
Based on two year's data of ground temperature monitored at Beiluhe section of the Qinghai-Tibet Railway, where field-testing embankment was constructed, the engineering effect of duct-ventilation embankment is discussed through analyzing ground temperature changes. Results indicate that duct-ventilation embankment is available to protect the underlying permafrost and even can extend it. It is also shown that it is better to bury ducts near the initial ground surface, so that the engineering effect of ventilation embankment can be advanced.
出处
《铁道工程学报》
EI
2003年第4期29-32,共4页
Journal of Railway Engineering Society
基金
中科院知识创新工程重大项目 (No.KZCA1 - SW- 0 4 )
国家自然科学基金重大项目 (90 1 0 2 0 0 6)
"973"国家重点基础研究发展规划项目 (2 0 0 2 CB41 2 70 4 )
