School of Transportation Science and Engineering Harbin Institute of Technology Heilongjiang Harbin 150090 China;
School of Transportation Science and Engineering Harbin Institute of Technology Heilongjiang Harbin 150090 ChinaState Key Laboratory of Road Engineering Safety and Health in Cold and High−Altitude Regions CCCC First Highway Consultants Co. Ltd. Xi''an 710075 China;
School of Transportation Science and Engineering Harbin Institute of Technology Heilongjiang Harbin 150090 China;
School of Transportation Science and Engineering Harbin Institute of Technology Heilongjiang Harbin 150090 China;
School of Transportation Science and Engineering Harbin Institute of Technology Heilongjiang Harbin 150090 China;
ice-frozen clay soil interface; cryogenic direct shear test; structural coefficient ratio; shear tangent stiffness; cementation;