Sidewall Collapse of Underground Structures Due to Loss of Lateral Support Under Internal Blast Loading
The structural integrity of immersed-tube tunnels that have a cross-section depends on the lining, the center wall and the horizontal slab. If a train running in tunnel-section I or II were subjected to an explosion, which then failed large area of the horizontal slab and also significantly weakened the sidewall, the sidewall might collapse under the lateral earth and water pressures. In this study, a sophisticated three-dimensional Finite Element (FE) model will be established to analyze the problem. It will identify the failure mechanism of such tunnels under the aforementioned scenario. Structure protection using fiber reinforced polymer (FRP) wrapping will also be investigated. Outcome of this study may not only serve the infrastructure protection in New York City area, it may also contribute to the general tunnel security literature, as the investigations on sidewall collapse due to loss of lateral support are very limited.
Language
- English
Project
- Status: Completed
- Funding: $11630.00
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Contract Numbers:
49997-60-24
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Sponsor Organizations:
University Transportation Research Center
City College of New York
Marshak Hall, Suite 910, 160 Convent Avenue
New York, NY United States 10031 -
Project Managers:
Eickemeyer, Penny
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Performing Organizations:
City College of New York
Civil Engineering, Steinman T-127
140th Street and Convent Avenue
New York, NY United States 10031 -
Principal Investigators:
Liu, Huabei
- Start Date: 20120901
- Expected Completion Date: 0
- Actual Completion Date: 20130831
- Source Data: RiP Project 33486
Subject/Index Terms
- TRT Terms: Collapse; Cross sections; Earth pressure; Explosions; Fiber reinforced polymers; Finite element method; Tunnels
- Uncontrolled Terms: Sidewalls
- Geographic Terms: New York (New York)
- Subject Areas: Bridges and other structures; Construction; Data and Information Technology;
Filing Info
- Accession Number: 01471046
- Record Type: Research project
- Source Agency: University Transportation Research Center
- Contract Numbers: 49997-60-24
- Files: UTC, RIP
- Created Date: Jan 31 2013 1:01AM