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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)