In Situ Testing of Square Footing Resting on Geobelt-Reinforced Gravel Thin Cushion on Soft Silt

Table 2

Testing program.

Test number	N^∗—	U^∗ (mm)	H^∗ (mm)	LDR^∗ (%)	Material type
A0	Unreinforced	—	—	—-	—
A1-1	1	50	—	33.3	TG
A1-2	1	100	—	50.0	TG
A1-3	1	100	—	33.3	TG
A1-4	1	100	—	25.0	TG
A1-5	1	200	—	33.3	TG
A2-1	2	50	100	33.3	TG
A2-2	2	50	150	33.3	TG
B2-1	2	50	100	33.3	CPE
B2-2	2	50	150	33.3	CPE

^∗N represents the layers of geobelt set in the gravel cushion, U is the depth of the first geobelt layer beneath the footing, H refers to the vertical spacing between two layers of geobelt, and LDR is the linear density of reinforcement which means the ratio of the width of geobelt to the center spacing of two geobelts.