| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 862316 | Procedia Engineering | 2011 | 7 Pages |
Abstract
A numeric software called FLAC3D is applied to simulate the fracture of upper strata while 2-2 coal seam is mined by hydraulic powered support in Sanbula coal mine where the shallow coal bed is covered by thin strata. Then a reasonable mining height of workface is deduced by analyzing the change of abutment pressure.The result indicats that the reasonable range of cutting height is 3.7 ∼4.7m when implementation of integrated mechanized mining coal seam 2-2 in area of the Sanbula.
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