Table 5 Flexible formwork concrete wall overrun damage length.

From: Predictive model for the instability of flexible formwork concrete wall in secondary mining of non-pillar coal mining

Mining distance /m

280

285

290

295

300

305

310

315

320

Length of overrun damage /m

7.8

11.7

15.7

18.9

20.9

22.7

23.5

23.9

24.0

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