Parametric Analysis of Interaction Between Crossing Tunnels at Different Level

Please enable javascript in your browser.

Tohidi, Amin | 2010

454 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41014 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Sadagiani, Mohammad Hossein
Abstract:
Sensibility of parameters that influence the Interaction between crossing tunnel at different level such as Soil charactristic, Construction procedure,Method of excavation,Rigidity of lining,Distance between tunnels and angle of intersection is studied. For comparison above parameters the surface settlement and bending moment during the excavation is measured .In order to simulate the Interaction between Crossing tunnels, use 3D finite element model with Abaqus program. The soil govern elasto-plastic mohr-coloumb constitutive equation.Parametric Analysis shows the great and different influence of each parameter that we can able to minimize this interaction with correct choose of this parameter. Fore example increase the lining thikhness, Boring the shallow tunnel first,Improvement the soil characteristic in intersection area,increase the distance between Tunnels and select prependicular angle between tunnels can minimize the interaction effects.
Keywords:
Three Dimensional Modeling ; Parametric Analysis ; ABAQUS Software ; Interaction Between Crossing Tunnel at Different Level

No TOC