Title:
Rocky Mountain Tunnels Lined With
Steel Fiber Reinforced Shotcrete
Author(s):
Dudley R. Morgan and Neil Mcaskill
Publication:
Concrete International
Volume:
6
Issue:
12
Appears on pages(s):
33-38
Keywords:
concrete construction; fiber reinforced con-cretes;
metal fibers; mix proportioning; quality control;
railroad tunnels; shotcrete; tunnel linings.
DOI:
Date:
12/1/1984
Abstract:
In the winter of 1982-83, steel fiber reinforced shotcrete was used to line the tunnels being constructed through the Rocky Mountains on the British Columbia Railway Tumbler Ridge Branch Line. This article describes the basis for selection of steel fiber reinforced shotcrete for the tunnel lining, gives shotcrete mix proportioning and specification data, reviews shot-Crete construction techniques and the quality assurance program, and gives typical shotcrete performance data. This project demonstrated that steel fiber reinforced shotcrete can provide avialable technical, economic, and practical alternative to conventionalmesh reinforced shotcrete for lining underground openings. *