Research Article
The Spatiotemporal Characteristics of Coupling Effect between Roof and Backfill Body in Dense Backfill Mining
Figure 9
Stress variation diagram of representative measuring points.
(a) Measuring points R1 and ct2 |
(b) Measuring points R3 and ct4 |
(c) Measuring points R5 and ct6 |
(d) Measuring points R7 and ct8 |