Table 4 Support optimization plan.
Number | Scheme diagram | descriptive | Support parameters |
---|---|---|---|
I | mesh-bolt-cable-shotcrete | mesh: mesh 60 mm × 60 mm, mesh angle 90° bolt: 10 bolts, length 2 m, yow line space 1 m × 1 m (100 kN) cable: 5 cables, length 8 m, yow line space1m × 1 m(200 kN, 45°) shotcrete: thickness 0.1 m | |
II | mesh-bolt-shotcrete | mesh: mesh 60 mm × 60 mm, mesh angle 90° bolt: 11 bolts, length 2 m, yow line space 1 m × 1 m (100 kN) shotcrete: thickness 0.1 m | |
III | mesh-bolt-cable-shotcrete | mesh: mesh 60 mm × 60 mm, mesh angle 90° bolt: 10 bolts, length 2 m, yow line space 1 m × 1 m(100 kN) cable: 5 cables, length 6 m, yow line space1m × 1 m(200 kN, 45°) shotcrete: thickness 0.15 m | |
IV | mesh-bolt-cable-shotcrete | mesh: mesh 60 mm × 60 mm, mesh angle 90° bolt: 10 bolts, length 2 m, yow line space 1 m × 1 m(100 kN) cable: 3 cables, length 8 m, yow line space1m × 1 m(200 kN, 15°) shotcrete: thickness 0.1 m |