tunnel ground subsidence

例句：

1. 1. The tunnelwas constructed to prevent the ground from subsiding.
   为了防止地面下沉，建造了这个隧道。
2. 2. The constructionof the tunnel has caused significantground subsidence in the area.
   隧道的建设导致了该地区的显著地面下沉。
3. 3. Theengineers were concerned about the potential forground subsidence during the excavationprocess.
   工程师们担心在挖掘过程中可能出现地面下沉的风险。