Study on Numerical Simulation of Geometric Elements of Blasting Funnel Based on PFC5.0

Table 6

Error of field test and numerical simulation.

Serial number	Charge quantity (g)	Crater depth measured value (m)	Crater depth measured average value (m)	Depth average error rate (%)	Crater diameter measured value (m)	Crater diameter measured average value (m)	Diameter average error rate (%)
1	60	0.5	0.53	+3.8	1.0	1.04	+5.8
2	60	0.6			1.1
3	60	0.5			0.8
4	60	0.6			1.3
5	60	0.6			0.9
6	60	0.5			0.9
7	60	0.5			1.3
8	60	0.5			1.0
9	60	0.5			1.1
10	80	0.6	0.65	−7.7	1.3	1.3	−6.2
11	80	0.7			1.3