The disease of subgrade in permafrost region was mainly induced by frost heaving and thawing circulation of frozen soils because of change of seasons.
多年冻土地区路基病害主要由冻土土体在季节变化条件下的冻融循环造成的。
2
Periodical variations of tether's tension caused by heaving oscillation of TLP play the role of a parametric exciter to vortex-induced vibration, and make it more complicated.
张力腿平台的垂荡引起张力周期性变化，对张力腿的涡激横向振动起参数激励的作用，使其动力响应更为复杂。
3
Combining with a manual berth project in frozen area park, frictional resistance and uplift displacement of piles induced by tangential frozen heaving force are decided by in-site test.