Group | 1 | 2 | 3 | 4 | 5 | 6 |
Surrounding-rock pressure value/kPa | 90.28 | 123.04 | 157.14 | 203.06 | 131.98 | 159.63 |
Group | 7 | 8 | 9 | 10 | 11 | 12 |
Surrounding-rock pressure value/kPa | 104.09 | 151.27 | 138.13 | 144.62 | 132.66 | 138.78 |
Group | 13 | 14 | 15 | 16 |
|
|
Surrounding-rock pressure value/kPa | 98.96 | 103.08 | 184.63 | 192.39 |
|
|