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List of products by author: S. Gharehdash
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Determining radius of influence of the face in EPB shield tunneling by finite difference method
Abstract: For the purpose of understanding the three-dimensional behavior of face tunnel, a three-dimensional finite difference simulation model, which includes all relevant shield tunneling components and allows for the modeling of the step-by-step construction process of the tunnel advance. The soil-structure interaction in shield tunneling is investigated by numerical solution. The results of...
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Numerical model for simulation of face seizure in EPB
Abstract: One of the main concerns in using a shielded machine in shallow soil tunnels is the possibility of the face seizure in soft ground. To realistically evaluate the possibility of face seizure in such grounds, the interaction between the soil and shield, lining and backfilling need to be understood. This paper will explain the background theories and the application of numerical analysis for 3D...
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Three dimensional numerical lining damage analysis under pore pressures 3D finite element model
Abstract: Segment is the basic structure unit of a shield tunnel. Lining is the main part of the segment. The mechanical behavior of the lining affects the form of reinforcement, the ratio of reinforcement and the cost of whole tunnel. Therefore, it is significant to clarify the mechanical behavior of lining in construction stage under pore pressures, which can save the engineering investment and...
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