Bolt Spacing: 1 m |
Bolt Number: in galleries (5); in the diagonal direction (7) |
Bolt Length: 1.50 m; active length: 1.40 m |
Point-anchor/resin-assisted; length of resin column: 0.75 m |
Bolt Diameter (?: 16 mm |
Bolt Capacity: 10,000 kg |
Pre-tension: 12 Kgf/m |
Grade of Steel: 540 MPa |