of;
Civil;
Engineering,;
Beijing;
Jiaotong;
University,;
Beo'ing;
100044,;
China;
Research;
Institute;
of;
Transportation,;
Xining,;
Qinghai;
810001,;
China;
of;
Civil;
Engineering,;
Toni;
Universi,;
Shanghai;
200092,;
China;
极限分析法; 耦合传热; 数值方法; 定性分析方法; 冻土; 有限元; 稳定性分析; 数值模拟;