the National Natural Science Foundation of China(Grant No.50378043);Open Foundation of State Key Laboratory of Frozen Soil Engineering of China;"ChunhuiProjeci of China Education Ministry;"Qinglan’Talent Engineering Foundation of Lanzhou Jjactong University.
Importing the interface element which links the frozen soil base with concrete piles and considering the couplings of stress field, temperature field and moisture field, this paper es- tablishes the nonlinear visco-el...