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In the present study, a coupled numerical method is used to study EDZ (excavation damage zone) in a deep schist tunnel. Two codes, Fast Lagrangian Analysis of Continua (FLAC) and Particle Flow Code (PFC) are coupled to implement the simulation. The motive to apply the FLAC/PFC coupled approach is to take advantage of each modeling scheme while at the same time minimizing the requirement for computational resources. The coupling is realized through an exchange of displacements, velocities, and forces in each cycling step. Simulation results are found to be in good agreement with in site ultrasonic wave measured EDZ profile. The coupled PFC/FLAC model present more information than each uncoupled model individually, and these simulation results are very important in tunnel design.
In the present study, a coupled numerical method is used to study EDZ (excavation damage zone) in a deep schist tunnel. Two codes, Fast Lagrangian Analysis of Continua (FLAC) and Particle Flow Code (PFC) are coupled to implement the simulation. The motive to apply the FLAC/PFC coupled approach is to take advantage of each modeling scheme while at the same time minimizing the requirement for computational resources. The coupling is realized through an exchange of displacements, velocities, and forces in each cycling step. Simulation results are found to be in good agreement with in site ultrasonic wave measured EDZ profile. The coupled PFC/FLAC model present more information than each uncoupled model individually, and these simulation results are very important in tunnel design.
PFC/FLAC Coupled Numerical Simulation of Excavation Damage Zone in Deep Schist Tunnel
2012
5 Seiten
Conference paper
English
Fluid-Solid Coupling Numerical Simulation for Tunnel in Fracture Zone Based on 2D-FLAC Software
| Trans Tech Publications | 2012
| Trans Tech Publications | 2012
| British Library Conference Proceedings | 2006
| British Library Conference Proceedings | 2012