supported by the National Natural Science Foundation of China(Grant Nos 40801022 and 40821001);the Chinese Academy of Sciences(CAS) Knowledge Innovation Key Directional Program(Grant Nos KZCX2-YW-Q03-04 and KZCX2-YW-311);CAS Western Project(Grant No.KZCX2-XB2-10);China Postdoctoral Science Foundation(No.20080430110);CAS 100-Talent Programs"Stability of Linear Engineering Foundations in Warm Permafrost Regions under a Changing Climate"and"Deformation and Stability of Roadbed in Permafrost Regions",CAS West Light Foundation for PhD G.Y.Li,Funds of the State Key Laboratory of Frozen Soils Engineering,CAS(Grant Nos SKLFSE-ZQ-02 and SKLFSE-ZY-03)
Permafrost (perennially frozen ground) appears widely in the Golmud-Lhasa section of the Qinghai-Tibet railway and is characterized by high ground temperature (≥1℃) and massive ground ice. Under the scenarios of...