Research on Physical Similarity Simulation of Mining Uphill and Downhill at the Large-Angle Working Face

<div>The changing curve of the abutment pressure in the roof as the advancement of working face at the floor strata 17 m away from the open cut (in the downhill mining section). (a) Roof (located at pressure cell 13). (b) Floor (located at pressure cell 3).</div>

Advances in Civil Engineering

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Figure 13

Figure 13: Research on Physical Similarity Simulation of Mining Uphill and Downhill at the Large-Angle Working Face 