Table 1 Dip angles of the upper and bottom discontinuities.
From: Research on instability characteristics and precursory effect of coal-rock parting-coal structures
No. of CRCS | α/° | β/° |
---|---|---|
#1 | 20 | 15 |
#2 | 25 | 20 |
#3 | 30 | 25 |
#4 | 35 | 30 |
From: Research on instability characteristics and precursory effect of coal-rock parting-coal structures
No. of CRCS | α/° | β/° |
---|---|---|
#1 | 20 | 15 |
#2 | 25 | 20 |
#3 | 30 | 25 |
#4 | 35 | 30 |