Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China

Table 9

Details of scenario II.

Simulative excavating steps	Mineral output/kt	Ore proportion/%	Shaft displacement/m	Displacement proportion/%	MPI
1	264.19	15.62%	0.0012	12.71%	1.23
2	363.85	21.51%	0.002	20.88%	1.03
3	563.42	33.30%	0.0026	26.26%	1.27
4	395.06	23.35%	0.0025	25.36%	0.92
5	105.20	6.22%	0.0014	14.79%	0.42
In total	1691.71	100.00%	0.0097	100%	1.00