Mechanical Characterizations of Joints in Segmented Tunnel Liners Due to Flexural and Thrust Jack Loading (UTI-UTC 28)

This research investigates the structural behavior of joints in segmented tunnel liners subjected to flexural and thrust jack loading, which are critical conditions encountered during tunnel construction and operation. The project focuses on quantifying the mechanical response of these joints, particularly under load scenarios simulating bending moments and axial forces applied by tunnel boring machines (TBMs). Experimental testing is conducted on full-scale precast concrete segments, including those from the Chesapeake Bay Tunnel project, to assess parameters such as joint stiffness, rotational capacity, and load-bearing performance. The study is complemented by detailed numerical modeling and analytical evaluations to validate test results and improve segmental design methodologies. The outcomes are expected to inform design guidelines and enhance the durability, safety, and reliability of segmented tunnel systems used in modern underground transportation infrastructure.

Language

• English

Project

• Status: Completed
• Funding: $56,379.00
• 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: 20201101
• Expected Completion Date: 20220430
• Actual Completion Date: 20220501
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Axial loads; Construction joints; Mathematical models; Segmental construction; Tunnel borers; Tunnel lining
• Geographic Terms: Chesapeake Bay
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 01954482
• Record Type: Research project
• Source Agency: University Transportation Center for Underground Transportation Infrastructure
• Contract Numbers: 69A3551747118
• Files: UTC, RIP
• Created Date: May 7 2025 5:37PM