Numerical Analysis of a Dual-Layer Geosynthetic-Encased Stone Column Installed in Soft Soil

Table 5

Improvement in DL-GESC and SL-GESC compared to OSC.

(mm)	Axial load (kN)			Improvement (%)
	s/d ratio	OSC	SL-GESC	DL-GESC	SL-GESC	DL-GESC
50	2	0.74	7.87	9.56	963.51	1191.89
	3	0.66	7.31	9.00	1007.58	1263.64
	4	0.65	7.23	8.94	1012.31	1275.38
75	2	1.99	10.36	12.43	420.60	524.62
	3	1.58	9.07	11.31	474.05	615.82
	4	1.49	9.11	11.23	511.41	653.69
100	2	3.52	13.37	15.51	279.83	340.63
	3	2.65	11.51	13.77	334.34	419.62
	4	2.99	11.06	13.57	269.90	353.85
125	2	4.64	16.41	19.27	253.66	315.30
	3	4.12	13.98	16.71	239.32	305.58
	4	4.11	13.32	16.06	224.09	290.75
150	2	6.70	19.73	22.88	194.48	241.49
	3	5.94	16.67	19.61	180.64	230.13
	4	5.94	15.84	18.75	166.67	215.66