Research on Inpit Dumping Height during Tracing Mining Period between Two Adjacent Surface Coal Mines

Table 6

Transportation cost of stripping spoil over elevation 1130 in Haerwusu coal mine with elevation 1130 covered.

Elevation	Engineering quantity (m^3 × 10^6)	Distance (m)	Transportation unit price (yuan/m^4)	Transportation cost (million yuan)
1205	0.74	5115	0.0025	9.41
1190	2.01	4970	0.0025	25.03
1175	3.82	5124	0.0025	48.90
1160	8.72	5170	0.0025	112.75
1145	16.08	5255	0.0025	211.25
1130	22.94	4700	0.0025	269.50
1115	24.06	4520	0.0025	271.82
1100	29.41	3950	0.0025	290.46
Total				1239.12