国家自然科学基金重点项目(No.41630636);甘肃省科技重大专项计划项目(No.143GKDA007);中国科学院率先行动"百人计划"资助项目(刘恩龙);冻土工程国家重点实验室课题(No.Y252J81001);supported by the National Natural Science Foundation of China(41630636);the Science and Technology Major Project of Gansu Province(143GKDA007);the Pioneer&Hundred Talents Program of CAS(Dr Liu Enlong);Project of the State Key Laboratory of Frozen Soils Engineering of CAS(Y252J81001)