Quantitative Identification of the Water Resistance Capacity of Composite Strata in Mining Coal Seam Floors

Table 2

Quantitative values of the index factors.

Drilling hole	Thickness ratio of plastic brittle rock	Core recovery rate	Thickness of effective aquiclude	Fault factor values	Composite compressive strength	Equivalent water resistance coefficient
1	1.4158	0.7840	47.73	0.8432	4.87	0.9410
2	1.0978	0.8795	54.39	1.2114	5.38	0.9685
3	1.1437	0.7255	60.16	1.4051	5.24	0.9251
4	0.9832	0.7500	61.49	0.8772	5.52	0.9196
5	0.4547	0.7626	82.06	1.1708	6.75	0.8285
6	0.8891	0.6579	68.03	1.1863	5.74	0.9492
7	1.2344	0.6879	51.77	1.3911	5.14	0.9528
8	0.9676	0.8300	59.51	1.3214	5.54	0.9143
9	0.9948	0.8100	62.23	1.2141	5.51	0.9310
10	0.8373	0.7243	50.35	0.8021	5.70	0.9042
11	1.2413	0.5881	55.18	0.7392	5.03	0.8816
12	0.9411	0.5223	56.52	1.1883	5.52	0.8659
13	0.8551	0.7988	72.24	0.8609	5.74	0.8913
14	0.6670	0.7131	66.02	1.2704	6.13	0.8490
15	0.7282	0.7300	54.06	1.1801	5.99	0.8629
16	0.7286	0.6500	55.42	1.1174	5.73	0.8533
17	0.8972	0.5178	80.13	0.6891	5.66	0.9018
18	0.4423	0.5650	87.61	1.0870	6.81	0.8354
19	0.8691	0.5500	81.05	0.8817	5.69	0.8818
20	0.7293	0.6975	69.32	0.9017	6.05	0.9053
21	0.9372	0.4363	89.77	0.8195	5.53	0.8659
22	0.6177	0.9226	75.05	0.8745	6.27	0.8508
23	0.6608	0.7508	59.65	0.7917	6.18	0.8750
24	0.7382	0.5876	74.00	0.6451	5.93	0.8342
25	0.6804	0.9000	65.17	0.8504	6.14	0.8847
26	0.7033	0.8996	66.95	0.7936	6.06	0.8705
27	0.8139	0.9060	61.15	0.8942	5.36	0.9137
28	0.7064	0.8471	74.35	0.9661	5.78	0.8677
29	0.3347	0.7330	58.90	1.1468	6.93	0.8736
30	0.7952	0.7953	54.25	1.3911	5.63	0.8872
31	0.2857	0.8829	60.65	0.8917	7.06	0.8500
32	0.6667	0.9149	62.90	0.8060	5.96	0.9001
33	0.5720	0.9098	56.93	0.8794	6.26	0.9179
34	0.4793	0.8400	60.37	0.8929	6.37	0.8885
35	0.8096	0.8694	68.65	0.8635	5.78	0.9527
36	0.4583	0.8462	55.81	1.1781	6.46	0.8629
37	0.5239	0.8464	55.18	1.2118	6.22	0.8500
38	1.3847	0.8479	55.25	1.1817	4.77	0.9226
39	0.6517	0.8700	77.83	0.9677	5.84	0.8673
40	0.1599	0.7889	79.58	0.8598	7.43	0.7724
41	0.2780	0.6980	75.73	0.8697	6.84	0.7943
42	0.5179	0.8500	78.00	0.8837	6.28	0.8772
43	0.6748	0.8540	77.80	1.0656	5.61	0.8444
44	0.4013	0.9300	81.41	1.1236	6.71	0.8844
45	0.7415	0.9150	86.90	0.7696	5.80	0.9075
46	0.4563	0.8520	77.09	0.9230	6.46	0.8845
47	0.6197	0.9490	79.80	0.8511	6.02	0.9158
48	0.7681	0.8090	80.72	0.9761	5.70	0.9040