[1]College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350116, China;
[2]School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090,China;
[2]School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090,China;
[2]School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090,China;
[2]School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090,China;
seasonally frozen regions; saturated silty clay soil; frost heave; freezing front; factor-sensitivity analysis;