Research Article

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

Figure 2

Roof ’s subsidence amount with different hg. (a) Roof ’s subsidence amount of coal wall. (b) Roof ’s subsidence amount above the support. (c) Roof ’s subsidence amount above the gangue filling body.
(a)
(b)
(c)