Research Article
Study on Roof Breakage-Induced Roadway Coal Burst in an Extrathick Steeply Inclined Coal Seam
Figure 12
Tomography results and tremors with energies E > 103 J between June 1, 2016, and June 30, 2016. (a) Seismic wave velocity anomaly distribution. (b) VG anomaly distribution.
| (a) |
| (b) |