Abstract
The design of a tunnel in an urban area requires a proper estimate of the effect of tunnel construction on adjacent structures. Therefore, a 3D numerical modeling technique is necessary to understand the performance of shallow foundations during and after the construction of a nearby tunnel. A verification model has been used to validate the tunnel modeling and its output using field data measurements. The 3D finite element model has been used to evaluate the performance of a raft foundation in the presence of a tunnel. In addition, the effect of related parameters such as; soil relative density, tunnel diameter, tunnel cover, and horizontal clearance between the raft foundation and the tunnel have been studied. The settlement of the raft and the induced bending moments during the process of tunnel advancement are presented.
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El Mouchi, A.M., Hassan, A.M., Amer, M.I. (2018). Effect of Using TBM Tunneling in Granular Soils on Performance of an Existing Raft Foundation. In: Agaiby, S., Grasso, P. (eds) Engineering Challenges for Sustainable Underground Use. GeoMEast 2017. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-319-61636-0_8
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DOI: https://doi.org/10.1007/978-3-319-61636-0_8
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