Frozen ground is significantly stiffer than unfrozen ground. For bridges supported on deep foundations, the bridge stiffness is also measurably increased in the winter mo [...]

Some studies have shown that the seasonally frozen soils have a significant effect on the dynamic properties of building structures, which will yield increases in the fun [...]

The existence of deep seasonally frozen soils might pose a serious problem in to structures supported by deep foundations. Moreover, in a highly active seismogenic zones, [...]