Damage and Failure Evolution Mechanism for Coal Pillar Dams Affected by Water Immersion in Underground Reservoirs

Table 4

Block and contact information of the F1 processing unit.

Block ID	Block area (s^2)	Contact ID	Contact length (m)	Normal displacement (mm)
2547213	0.1507	8110032	0.2194	5.0399
		2548431	0.4316	5.4270
		2548284	0.0849	0.7235
		2548607	0.4763	5.5610
		2548519	0.0134	6.9820
2535070	0.0152	8100550	0.2194	5.0288
		8104822	0.1463	6.664
2540996	0.0349	8109856	0.1463	6.661
		2541440	0.2385	2.8444
2549665	0.2356	2548343	0.4316	5.5590
		2541075	0.2385	3.5144
		2550886	0.3578	5.7025
		8091739	0.4967	9.1313
2559699	0.0612	2550844	0.3578	8.0616
		2558729	0.4967	9.5340
2558373	0.1833	2548242	0.0849	1.2428
		2551033	0.4967	7.3613
		2558494	0.4967	8.0590
		2558641	0.4707	7.3750
		2549383	0.1448	5.1230
2560705	0.1176	2558553	0.4707	6.3380
		2549471	0.3007	1.2508
2549187	0.1533	2548607	0.4763	5.5610
		2549266	0.1448	5.0460
		2549005	0.3007	2.0306
		2540361	0.2002	0.8095
2538882	0.0010	2540420	0.0134	6.3420
		2540319	0.2002	0.8101
	0.9528		0.0472