Table 6 Data of evaluation indicators for the No. 11 coal seam in the Sangshuping coal mine from some of the boreholes.
Borehole number | Coordinate | Indicator | ||||
---|---|---|---|---|---|---|
x | y | Coal seam thickness | Sandstone thickness within 50 m of the coal seam roof | Lithology of the coal seam roof | Elevation of the coal seam floor | |
22 | 19458628.63 | 3948525.82 | 3.63 | 38.19 | Mudstone | 372.93 |
67 | 19458631.82 | 3949204.51 | 5.03 | 34.23 | Siltstone | 353.99 |
70 | 19456847.78 | 3950001.46 | 2.48 | 37.76 | Carbonaceous mudstone | 185.11 |
73 | 19457211.24 | 3950459.91 | 3.81 | 34.66 | Siltstone | 173.88 |
77 | 19458141.78 | 3951527.86 | 1.39 | 25.80 | Quartz sandstone | 192.14 |
79 | 19458700.25 | 3951933.62 | 2.39 | 21.23 | Quartz sandstone | 234.89 |
87 | 19460644.52 | 3952143.35 | 2.35 | 27.59 | Quartz sandstone | 434.1 |
88 | 19459200.20 | 3952759.20 | 5.26 | 14.61 | Sandy mudstone | 215.6 |
90 | 19460318.30 | 3953101.98 | 3.71 | 18.70 | Mudstone | 302.96 |
94 | 19459152.30 | 3954020.00 | 3.54 | 33.13 | Quartz sandstone | 206.61 |
95 | 19458437.19 | 3954002.26 | 3.12 | 32.69 | Marl | 138.83 |
103 | 19459201.01 | 3955581.32 | 2.74 | 16.81 | Fine-grained sandstone | 230.92 |
104 | 19458532.33 | 3955411.63 | 4.93 | 19.81 | Fine-grained sandstone | 145.06 |
106 | 19458667.11 | 3956101.04 | 5.28 | 22.40 | Siltstone | 202.1 |
108 | 19459418.38 | 3956695.98 | 2.10 | 8.67 | Marl | 271.4 |
109 | 19456435.24 | 3950693.28 | 2.49 | 27.48 | Mudstone | 148.99 |
113 | 19460328.82 | 3957344.11 | 3.95 | 10.87 | Mudstone limestone | 216.56 |
119 | 19460231.93 | 3952288.82 | 5.93 | 9.59 | Sandy mudstone | 374.05 |
B1-1 | 19455209.43 | 3950099.90 | 2.05 | 29.11 | Quartz sandstone | 110.04 |
B12-1 | 19456915.01 | 3954998.95 | 4.00 | 28.83 | Calcite | 95.89 |
B13-1 | 19460737.40 | 3957627.58 | 3.75 | 7.61 | Calcite | 200.83 |
B14-4 | 19457540.69 | 3956735.07 | 4.00 | 2.79 | Calcite | 178.67 |
B17-4 | 19456938.52 | 3958022.59 | 3.90 | 14.03 | Calcite | 175.47 |
B18-2 | 19459497.53 | 3958698.09 | 4.45 | 10.59 | Calcite | 179.91 |
B19-1 | 19460527.89 | 3959299.30 | 3.95 | 12.36 | Mudstone | 197.34 |
B19-5 | 19458083.75 | 3959213.06 | 6.75 | 18.54 | Calcite | 149.35 |
B20-5 | 19458149.64 | 3959781.25 | 5.10 | 26.35 | Calcite | 139.47 |
B21-2 | 19459196.04 | 3960408.92 | 3.60 | 10.70 | Calcite | 186.51 |
B21-4 | 19458226.82 | 3960369.71 | 5.05 | 17.23 | Calcite | 150.6 |
B22-1 | 19460334.29 | 3960894.79 | 3.85 | 21.10 | Calcite | 181.12 |
Bshui7-1 | 19457101.81 | 3953245.23 | 3.05 | 29.11 | Calcite | 124.92 |
Bshui19-6 | 19457151.61 | 3959115.04 | 3.80 | 24.55 | Marl | 132.7 |
B32 | 19458659.18 | 3950890.36 | 2.84 | 35.65 | Sandstone | 240.9 |
B36 | 19455560.27 | 3951987.27 | 2.22 | 39.63 | Sandstone | 88.43 |
P2 | 19459132.81 | 3958004.22 | 5.33 | 23.10 | Calcite | 187.41 |
P5 | 19457079.56 | 3956875.67 | 3.40 | 23.73 | Quartz sandstone | 137.9 |
P8 | 19458617.74 | 3953060.34 | 3.56 | 21.71 | Marl | 165.04 |
P9 | 19457505.91 | 3953584.29 | 1.81 | 34.38 | Siltstone | 140.58 |
P14 | 19457791.71 | 3950203.76 | 0.24 | 41.76 | Quartz sandstone | 225.01 |
P16 | 19457400.09 | 3949190.77 | 2.83 | 36.26 | Quartz sandstone | 251.48 |
P18 | 19455684.20 | 3949841.94 | 1.80 | 22.30 | Quartz sandstone | 143.1 |
S3 | 19459119.94 | 3948903.29 | 2.88 | 35.66 | Mudstone | 406.51 |
S5 | 19458280.57 | 3949284.13 | 3.18 | 40.44 | Mudstone | 319.85 |