Optimization Method for Irregular Piled Raft Foundation on Layered Soil Media

Table 2

Parameters of the DC model used in this paper.

Soil	High level (m)		Type	Rf	k	n	G	F	D	kur	φ (°)	c (kPa)	ρs (g/cm^3)
	Single pile model	PRF model
1	−65∼−46	18.44∼27	Fine sand	0.84	640	0.59	0.40	0	0	970	37.1	14.7	1.09
2	−74∼−65	15∼18.44	Fine sand	0.84	670	0.59	0.40	0	0	1010	38.2	15.5	1.11
3	−86∼−74	13∼15	Medium-coarse gravel	0.80	520	0.56	0.40	0	0	780	34.9	11.7	1.15
4	−95∼−86	2∼13	Medium-coarse sand	0.70	460	0.52	0.40	0	0	700	34.6	10.8	1.09
5	−105∼−95	−4∼2	Medium-coarse gravel	0.80	500	0.58	0.40	0	0	760	38.1	16.5	1.15
6	−123∼−105	−17∼−4	Fine sand	0.91	430	0.62	0.40	0	0	660	34.6	15.7	1.10
7	−138∼−123	−21∼−17	Medium-coarse gravel	0.80	570	0.59	0.40	0	0	900	34.2	19.9	1.10
8	−166∼−138	—	Clay	0.78	370	0.52	0.38	0	0	500	28.5	72.7	1.03
9	−220∼−166	—	Silty fine sand	0.78	450	0.57	0.40	0	0	700	32.0	42	1.06