青藏铁路多年冻土区路基工程稳定性评价  

Study on the Stability of the Subgrade Engineering in Permafrost Area along Qinghai-Tibet Railway

作　　者：孙永宁 王进昌 程佳 李勇 

机构地区：[1]青藏铁路公司,青海西宁810007 [2]中铁西北科学研究院有限公司,甘肃兰州730000 [3]青藏铁路冻土工程试验室,青海格尔木816000

出　　处：《兰州交通大学学报》2011年第3期28-31,共4页Journal of Lanzhou Jiaotong University

基　　金："十一五"科技支撑计划课题(2006BAC07B0)

摘　　要：依托青藏铁路多年冻土区长期观测系统的成果,对青藏铁路多年冻土区路基工程的稳定性进行了研究,指出其稳定性总体上处于良好状态,仅有个别地段病害发育,针对病害路段从水热方面提出了防治措施.观测资料显示,科学合理的措施能有效地减缓病害情况,保障铁路的安全运营.Using the data from long-term observation system of permafrost area along Qinghai-Tibet Railway, the stability of the subgrade engineering of Qinghai-Tibet Railway is analyzed. The stability of most subgrade engineering is in a good condition,but the subgrade sinkage is formed only in several areas. After taken measures including drainage and thermal protection, the data prove that the disease subgrade tends to stabilize. Reasonable measures can protect subgrade engineering.

关 键 词：青藏铁路 多年冻土区 路基工程 稳定性 

分 类 号：TU445[建筑科学—岩土工程]