Ground Movements due to Shallow Tunnels in Soft Ground. I: Analytical Solutions
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Whittle_Ground movements.pdf
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2.56 MB
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Author(s)
Pinto, Federico
Whittle, Andrew
Date Issued
April 2014
Journal
Journal of Geotechnical and Geoenvironmental Engineering
Publisher
American Society of Civil Engineers (ASCE)
Citation
Pinto, Federico, and Andrew J. Whittle. “Ground Movements Due to Shallow Tunnels in Soft Ground. I: Analytical Solutions.” Journal of Geotechnical and Geoenvironmental Engineering 140, no. 4 (April 2014): 04013040.
Version
Author's final manuscript
Abstract
This paper presents simplified closed-form analytical solutions that can be used to interpret and predict ground movements caused by shallow tunneling in soft ground conditions. These solutions offer a more comprehensive framework for understanding the distribution of ground movements than widely used empirical functions. Analytical solutions for the displacement field within the ground mass are obtained for two basic modes of deformation corresponding to uniform convergence and ovalization at the wall of a circular tunnel cavity, based on the assumption of linear, elastic soil behavior. Deformation fields based on the superposition of fundamental, singularity solutions are shown to differ only slightly from analyses that consider the physical dimensions of the tunnel cavity, except in the case of very shallow tunnels. This work demonstrates a simplified method to account for soil plasticity in the analyses and illustrate closed-form solutions for a three-dimensional (3D) tunnel heading. A companion paper describes applications of these analyses to interpret field measurements of ground response to tunneling.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
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DOI of Published Version
https://doi.org/10.1061/(ASCE)GT.1943-5606.0000948
