1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, No. 320 Donggang West Road, Lanzhou 730000, China
2. Key Laboratory of Highway Construction & Maintenance Technology in Permafrost Region, Ministry of Transport, CCCC First Highway Consultants Co. Ltd., No. 63 Science and Technology 2 Road, Xi'an 710075, China
3. University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China