黄土在我国广泛分布，黄土路基沉陷变形是黄土地区公路的主要病害之一。
Loess widely distributes in China and the subsidence deformation of loess roadbed is one of the common highway disasters in loess areas.
冻土区的冻胀、融沉给该地区道路和建筑物造成很大的危害，如使道路出现裂缝、沉陷、结构断裂、基础上拔等。
The frost heave and thawing settlement of frozen soil area can do great harm to the road and building which lies on it, such as the crack, settlement, fragile structures foundation element etc.
地层沉陷导致位于该地区的隧道随之沉陷，直接影响到隧道的安全使用。
A tunnel subsidence is caused by ground subsidence, and the security of the tunnel directly impaired.
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