Abstract：This paper describes the subgrade disease of trial section on Qinghai-Tibet Railway after a freeze-thaw cycle, analyzes the problems in the subgrade based on observation on the subgrade settlement and proposes the protection measures for ice-riching permafrost and precautions for the construction in plateau permafrost area.
李彦平. 从青藏铁路清水河试验段路基的沉降浅议高原冻土路基的稳定性[J]. 铁道工程学报, 2003, 20(4): 26-28.
LI Yan-ping. DISCUSSION ON THE STABILITY OF SUBGRADE IN PLATEAU PERMAFROST AREA. 铁道工程学报, 2003, 20(4): 26-28.
2003, Vol. 20 
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