Review Article
Overburden Deformation Rule in Super High Seam Fully Mechanized Caving Mining of Thick Unconsolidated Stratum
Table 4
Related data of working resistance of hydraulic supports (in the upper part of working face).
| | Month | Number of hydraulic support | Pressure step (m) | Face advanced distance (m/d) | Dynamic load factor |
| | 1 | 28#, 42# | 16.15 | 2.9 | 1.16 | | 2 | 28#, 42# | 16.30 | 3.1 | 1.26 | | 3 | 7#, 28# | 10.00 | 4.5 | 1.16 | | 4 | 42#, 49# | 14.78 | 6.3 | 1.16 | | 5 | 42#, 49# | 14.78 | 6.3 | 1.16 | | 6 | 7#, 35# | 10.00 | 4.5 | 1.21 | | 7 | 7#, 35# | 10.26 | 4.7 | 1.23 | | 8 | 42#, 49# | 10.80 | 6.3 | 1.18 |
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