Numerical Analysis of the Influence of Foundation Pit Blasting on a Nearby Metro Tunnel

Table 7

Blasting parameters of the foundation pit.

Depth of hole (m)	a × b (m)	q2 (kg·m^−3)	Charge of unit hole (kg)	Length of stemming (m)
2.0	1.0 × 0.9	0.45	0.8	1.2
2.5	1.1 × 0.9	0.45	1.1	1.4
3.0	1.2 × 1.0	0.45	1.6	1.4