Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process

<div>Roof’s subsidence with different <i>σ</i>. (a) Roof’s subsidence of coal wall. (b) Roof’s subsidence above the support. (c) Roof’s subsidence above the gangue filling body.</div>

Advances in Civil Engineering

fig3

Figure 3

Figure 3: Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process 

Figure 3 | Study on the Mechanical Relationship among the Backfilling Mining Support, Roof Rock Beam, and Gangue Filling Body in Comprehensive Mechanized Filling Mining Process 