Fire Resistance of Tunnel Liners with Fiber-Reinforced Concrete (UTI-UTC 18)

This research investigates the thermal and structural performance of fiber-reinforced concrete (FRC) tunnel liners when subjected to fire events. The study focuses on evaluating how various types and dosages of fibers affect critical parameters such as spalling behavior, temperature distribution, and residual mechanical strength of concrete panels under extreme heat exposure. Experimental testing includes full-scale fire simulations to replicate tunnel fire scenarios, alongside thermal and mechanical post-fire assessments. Complementary numerical modeling is used to analyze heat transfer and stress development within the liners. The project aims to develop performance-based criteria and design recommendations for incorporating fiber-reinforced concrete in tunnel lining systems, ultimately enhancing the fire resilience and post-event safety of underground transportation infrastructure.

Language

• English

Project

• Status: Completed
• Funding: $304,449.00
• Contract Numbers:

  69A3551747118

• Sponsor Organizations:

  University Transportation Center for Underground Transportation Infrastructure

  Colorado School of Mines
  Golden, CO  United States  80401

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Colorado School of Mines

  1500 Illinois St
  Golden, CO  United States  80401

  Lehigh University

  ATLSS Engineering Research Center
  IMBT Laboratory
  Bethlehem, PA  United States  18015-4729
• Performing Organizations:

  Lehigh University

  ATLSS Engineering Research Center
  IMBT Laboratory
  Bethlehem, PA  United States  18015-4729
• Principal Investigators:

  Naito , Clay

  Quiel , Spencer

• Start Date: 20220101
• Expected Completion Date: 20250501
• Actual Completion Date: 20250501
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Fiber reinforced concrete; Fire resistant materials; Mathematical models; Residual strength; Simulation; Temperature; Tunnel lining
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01954490
• Record Type: Research project
• Source Agency: University Transportation Center for Underground Transportation Infrastructure
• Contract Numbers: 69A3551747118
• Files: UTC, RIP
• Created Date: May 7 2025 6:18PM