Research Article
Quantitative Identification of the Water Resistance Capacity of Composite Strata in Mining Coal Seam Floors
Table 11
Evaluation results of each borehole in the mining area.
| Drilling hole | Level eigenvalue | Waterproof ability grade | , | , | , | , | Mean |
| 1 | 3.6544 | 3.5047 | 4.1654 | 3.9117 | 3.8091 | IV | 2 | 3.502 | 3.4306 | 4.0213 | 3.9278 | 3.7204 | IV | 3 | 3.6759 | 3.5109 | 4.239 | 3.9485 | 3.8436 | IV | 4 | 3.7136 | 3.5287 | 4.2675 | 3.9754 | 3.8713 | IV | 5 | 2.2395 | 2.3538 | 1.9527 | 2.1855 | 2.1829 | II | 6 | 3.7877 | 3.6014 | 4.5335 | 4.2561 | 4.0447 | IV | 7 | 3.588 | 3.4534 | 4.2084 | 3.9854 | 3.8088 | IV | 8 | 3.7403 | 3.5429 | 4.2758 | 3.9915 | 3.8876 | IV | 9 | 3.6678 | 3.5091 | 4.2116 | 3.9349 | 3.8308 | IV | 10 | 3.2876 | 3.2574 | 3.6278 | 3.5052 | 3.4195 | III | 11 | 3.1764 | 3.2221 | 3.2825 | 3.3479 | 3.2572 | III | 12 | 2.3663 | 2.2988 | 2.5043 | 2.4577 | 2.4068 | II | 13 | 3.3073 | 3.2887 | 3.5358 | 3.5015 | 3.4083 | III | 14 | 2.1647 | 2.2678 | 1.9389 | 2.1243 | 2.1239 | II | 15 | 2.5617 | 2.606 | 2.5215 | 2.6208 | 2.5775 | III | 16 | 2.279 | 2.3811 | 2.0797 | 2.2682 | 2.252 | II | 17 | 3.296 | 3.2668 | 3.6164 | 3.5123 | 3.4229 | III | 18 | 2.2245 | 2.3447 | 1.9259 | 2.1655 | 2.1652 | II | 19 | 3.182 | 3.2255 | 3.2919 | 3.354 | 3.2634 | III | 20 | 3.7163 | 3.5353 | 4.1929 | 3.9606 | 3.8513 | IV | 21 | 2.3663 | 2.2988 | 2.5043 | 2.4577 | 2.4068 | II | 22 | 2.2127 | 2.3157 | 1.9924 | 2.1817 | 2.1756 | II | 23 | 2.9916 | 3.0838 | 2.9515 | 3.1097 | 3.0342 | III | 24 | 2.2272 | 2.3463 | 1.9305 | 2.1691 | 2.1683 | II | 25 | 3.2634 | 3.2673 | 3.4148 | 3.4315 | 3.3442 | III | 26 | 2.8611 | 2.9716 | 2.7547 | 2.9459 | 2.8833 | III | 27 | 3.7387 | 3.5425 | 4.2704 | 3.9899 | 3.8854 | IV | 28 | 2.4441 | 2.3738 | 2.5554 | 2.5058 | 2.4698 | II | 29 | 2.9519 | 3.0502 | 2.886 | 3.0575 | 2.9864 | III | 30 | 3.2971 | 3.288 | 3.4872 | 3.4804 | 3.3882 | III | 31 | 2.1914 | 2.2944 | 1.9676 | 2.1556 | 2.1522 | II | 32 | 3.3017 | 3.2728 | 3.608 | 3.5157 | 3.4246 | III | 33 | 3.7246 | 3.5343 | 4.2739 | 3.9827 | 3.8789 | IV | 34 | 3.3003 | 3.2884 | 3.5022 | 3.4872 | 3.3945 | III | 35 | 3.5887 | 3.4537 | 4.2099 | 3.9861 | 3.8096 | IV | 36 | 2.5617 | 2.606 | 2.5215 | 2.6208 | 2.5775 | III | 37 | 2.1914 | 2.2944 | 1.9676 | 2.1556 | 2.1522 | II | 38 | 4.6934 | 4.5189 | 5.2535 | 4.9613 | 4.8568 | V | 39 | 2.4271 | 2.3573 | 2.5431 | 2.4942 | 2.4554 | II | 40 | 1.8025 | 1.8694 | 1.6102 | 1.7337 | 1.754 | I | 41 | 1.7928 | 1.8653 | 1.6009 | 1.7255 | 1.7461 | I | 42 | 3.0531 | 3.1345 | 3.0596 | 3.1939 | 3.1103 | III | 43 | 2.2044 | 2.3317 | 1.8922 | 2.1376 | 2.1415 | II | 44 | 3.255 | 3.2636 | 3.4034 | 3.4245 | 3.3366 | III | 45 | 4.7221 | 4.5373 | 5.2134 | 4.9691 | 4.8605 | V | 46 | 3.2578 | 3.2649 | 3.4072 | 3.4269 | 3.3392 | III | 47 | 4.7378 | 4.541 | 5.2804 | 4.9908 | 4.8875 | V | 48 | 3.2883 | 3.2582 | 3.6268 | 3.5059 | 3.4198 | III |
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