Abstract: The impact of climate warming on warm and rich-ice permafrost must be considered for engineering design in the Qinghai-Tibet Railway. In order to face climate warming and solve the roadbed stability in the regions of warm and rich-ice permafrost, the new design idea of cooling embankment to reduce the permafrost temperature under the embankment was proposed. Engineering measures controlling heat conduction, radiation and convection were proposed to achieve the objective of reducing permafrost temperature and mitigating the impact of climate warming, ensuring the roadbed stability in permafrost regions to the largest extent.

Key words: the Qinghai-Tibet Railway, climate change, techniques of railway construction