围绕青藏铁路冻土工程地质、气候变化对冻土及铁路路基稳定性、生态环境变化与保护问题,分析了青藏铁路工程建设中存在的冻土工程技术问题,提出了青藏铁路建设中应对这些问题的新思路:采取积极保护多年冻土的主动冷却路基的思路和动态设计思路,并给出了青藏铁路建设中下一步应思考和研究的问题。 Around the Qinghai-Tibet Railway permafrost geology, climate change on the stability and ecological environment changes and protection of permafrost and railway subgrade, the paper analyzes the technical problems of permafrost existing in the construction of Qinghai-Tibet Railway, and puts forward the solutions to these problems in the construction of Qinghai-Tibet Railway New ideas: to take active protection of permafrost active cooling embankment ideas and dynamic design ideas, and gives the construction of Qinghai-Tibet Railway should think about and study the next issue.