Experimental Study on the Pile-Soil Synergistic Mechanism of Composite Foundation with Rigid Long and Short Piles

Table 4

Model groups.

	Types	Pile length (m)	Cushion thickness (mm)	Loading board size (mm)	Pile diameter (mm)
1	Natural foundation			300 × 300	100
2		1.0	50	300 × 300	100
3	Single-pile composite foundation	1.5	50	300 × 300	100
4		2.1	50	300 × 300	100
5		1.0/1.0	50	600 × 600	100
6		1.0/1.5	50	600 × 600	100
7	Four-pile composite foundation	1.0/2.1	50	600 × 600	100
8		1.5/1.5	50	600 × 600	100
9		1.5/2.1	50	600 × 600	100
10		2.1/2.1	50	600 × 600	100