Optimization Method for Irregular Piled Raft Foundation on Layered Soil Media

Table 10

Details of the comparison between the initial design and optimal design.

Model	Differential settlement (m)		Differential stress (MPa)
	Section A-A	Section B-B	Section A-A	Section B-B
Initial design	0.0104	0.0097	1.86	1.74
Different diameters (F)	0.0019 (82%)	0.002 (79%)	0.82 (56%)	0.51 (71%)
Different spacing (F)	0.0016 (85%)	0.0016 (84%)	0.44 (76%)	0.47 (73%)

Note. The differential values are the difference between the maximum and minimum values of the piles along section A-A or B-B.