Optimum Design of Pile Foundation by Automatic Grouping Genetic Algorithms

Table 4

Summary of soil properties under the raft.

Layer	1	2	3	4	5	6	7
Soil	Clay-a	Clay-b	Clay-c	Rock-a	Rock-b	Rock-c	Rock-d
Thickness (m)	3.5	13.0	15.3	4.9	23.6	8.4	5.8
Weight (kN/m^3)	18.3	18.5	19.0	19.5	21.0	22.5	24.0
Capacity (kPa)	530	540	580	650	700	800	2000
𝐸𝑠 (MPa)	12	15	18	34	60	95	—
𝑓𝑠 (kPa)	50	55	60	65	90	140	220
𝑓𝑏 (kPa)	1300	1700	1700	1800	3000	13230	41320