In the limit, for very weak rock, settlement at the boundary can also occur before the separation crack.

在极限情况下，对于非常软弱的岩石，形成分离裂缝之前，也会发生边界处的沉陷。

youdao

In the limit, for very weak rock, settlement at the boundary can also occur before the separation crack.

在极限情况下，对于非常软弱的岩石，形成分离裂缝之前，也会发生边界处的沉陷。

youdao