Title:
Reduction of Water Inflow by Controlling Cracks in FRC Tunnel Segments
Author(s):
Mehdi Bakhshi and Verya Nasri
Publication:
Symposium Paper
Volume:
319
Issue:
Appears on pages(s):
6.1-6.16
Keywords:
crack width; durability; fiber; flow rate; lining; reinforced concrete; segment; tunnel; water inflow
DOI:
10.14359/51700855
Date:
6/1/2017
Abstract:
Cracking in tunnel lining is a major cause for reduction in serviceability due to water infiltration and
exfiltration, and reinforcement corrosion. In order to control water inflow in lined tunnels, design codes and
guidelines limit maximum crack width. However, correlation between the allowable crack width and corresponding
water inflow in tunnel has not been provided. This paper discusses effects of fiber reinforcement in reduction of
flexural crack width, and provides a relationship between crack width and water inflow to verify merits of current
crack width criteria for design and construction of concrete tunnel linings.
Keywords: