Three-Dimensional Ground Settlement Induced by Metro Tunnel Excavation Considering the Influence of Group Piles

Table 3

The coordinates of the piles center on the ground and radii of piles.

Examples	1	2	3	4
Coordinates	(0, 0)	(20, 0)	(30, 0)	(30, 0)
(m)	1	1	1	2
(m)	20	20	20	40