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Rock Bolt
Description
A rock bolt stabilizes ground by knitting the rock mass together and using arching effect in order to prevent a collapse of rock mass caused by discontinuity such as joints and cracks of rock mass that is relaxed due to tunneling, cutting and excavation.
Specification
| Product | Diameter (Ø) |
Mechanical Properties | Elongation (%) |
Bend Angle | Chemical Composition | ||
|---|---|---|---|---|---|---|---|
| Yield Point (N/㎟) |
Tensile Strength(N/㎟) | P | S | ||||
| SD400 | D25 | 400~520 | 1.15 times the yield strength or more | 16 or more | 180° | 0.045 or less | 0.045 or less |
| D29 | 18 or more | ||||||
Application
Features
Types
Installation Flow (Tunnel)
