Optimization Method for Irregular Piled Raft Foundation on Layered Soil Media

Table 1

The relationships between the parameters of the PRF.

Result	Raft thickness	Pile length	Pile diameter	Pile distance
Total settlement	Inverse ratio^a	Inverse ratio	Inverse ratio	Little effect
Differential settlement	Inverse ratio	Inverse ratio	Inverse ratio	Direct ratio
Bending moments of the raft	Direct ratio^b	Little effect^c	Inverse ratio	Direct ratio

^aThe calculation result decreases as the variable increases. ^bThe calculation result increases with an increase in the variable. ^cThe variables have only a slight effect on the calculations.