Chapter
Aug 14, 2018
Chapter 7
Decision Aids for Tunneling
Publication: Resilience Engineering for Urban Tunnels
Abstract
The Decision Aids for Tunneling (DAT) is a computer-based tool that captures and processes uncertainty in geologic/geotechnical conditions and in the construction process to produce time-cost scattergrams and time-distance diagrams reflecting this uncertainty. These results can then be used, for instance, for risk analysis and management. In the context of the DAT and similar approaches, resilient design focuses on the construction process. More specifically, the construction process should be adaptable to minimize risks and/or satisfy particular boundary conditions. The chapter schematically shows a more encompassing approach that involves combining the DAT with a new optimization tool using simulated annealing. For instance, an alignment is selected based on transportation requirements, followed by the DAT time-cost determination. Varying the alignment while satisfying all boundary conditions allows an optimum to be obtained.
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© 2018 American Society of Civil Engineers.
History
Published online: Aug 14, 2018
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ASCE Technical Topics:
- Alignment
- Boundary conditions
- Boundary value problem
- Computing in civil engineering
- Construction engineering
- Construction equipment
- Construction management
- Continuum mechanics
- Design (by type)
- Differential equations
- Disaster risk management
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Equations (by type)
- Equipment and machinery
- Geometrics
- Geotechnical engineering
- Highway and road design
- Mathematics
- Motion (dynamics)
- Risk management
- Solid mechanics
- Tunneling
- Tunnels
- Uncertainty principles
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Department of Civil and Environmental Engineering, MIT, Room 1-342; 77 Massachusetts Avenue; Cambridge, MA, 02139; email: [email protected]
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