Interaction Between Tunnel and Adjacent Structures Using a Two Dimensional Finite Element Analysis

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Nematiomabad, Mohammad Reza | 2009

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Type of Document: M.Sc. Thesis
Language: English
Document No: 39689 (53)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Sadaghiani, Mohammad Hossein
Abstract:
This research concerns a study of the interaction between tunneling and adjacent structures. Analysis is performed using a full two-dimensional finite element model, which takes into consideration the presence of adjacent structure with regard to distance to tunnel and diameter of tunnel during construction of the tunnel. The soil behavior is assumed to be governed by an elastic perfectly-plastic constitutive relation based on Mohr-Coulomb criterion with a non-associated flow rule. The research is composed of two parts. However, compatibility of each method with beam and solid continuum element models in two dimensional finite element (FE) analysis was investigated. The first part describes the numerical model used in this study. The two-dimensional analysis of the construction of a shallow tunnel close to a multi-level building was conducted using the finite element program, ABAQUS. The analyses include influence of effective parameters such as tunnel diameter, width of soil between tunnel crown and building foundation. The effect of construction stages of structures on the tunnel stability was also studied. Next, the results of analyses were compared quantitatively
Keywords:
Interaction ; Design ; Structures ; Tunnels ; Objacent Structures

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