Research Article
Research on Physical Similarity Simulation of Mining Uphill and Downhill at the Large-Angle Working Face
Figure 17
The changing curve of the abutment pressure in the roof as the advancement of working face at the floor strata 330 m away from the open cut (in the uphill mining section). (a) Roof (located at pressure cell 19). (b) Floor (located at pressure cell 9).
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(b) |