So based on the condition of displacement coordination, a method which can consider the effect of the cap sharing the load to predict the settlement of pile groups with low caps is advised.

Pile length is the main factor that effects the settlement of embankment; pile space and dimension of pile cap are followed.

The loss of strength due to the strong disturbance of underlaying residual soil by the excavation of foundation trench shall cause obvious settlement of cushion cap with its gravity.