The role of slurry TBM parameters on ground deformation: Field results and computational modelling |
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| Affiliation: | 1. Center for Underground, Colorado School of Mines, Golden, CO, USA;2. School of Civil Engineering, Southwest Jiaotong University, Chengdu, China;1. Ruhr-Universität Bochum, Faculty of Civil and Environmental Engineering, Chair of Computing in Engineering, 150, Universitätsstr., 44780 Bochum, Germany;2. Ruhr-Universität Bochum, Faculty of Civil and Environmental Engineering, Chair for Foundation Engineering, Soil and Rock Mechanics, 150, Universitätsstr., 44780 Bochum, Germany;1. Delft University of Technology, Geo-Engineering Section, Stevinweg 1, 2628 CN Delft, The Netherlands;2. Hanoi University of Mining and Geology, Faculty of Civil Engineering, Viet Nam;1. School of Civil Engineering, Tianjin University, Tianjin 300072, China;2. Key Laboratory of Coast Civil Structure Safety (Tianjin University), Ministry of Education, China;3. State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;1. School of Civil Engineering, Geotechnical Dept., National Technical University of Athens, 9, Iroon Polytechniou Str., 157 80 Zografou, Athens, Greece;2. Geo-Engineering Centre Queen''s University, Kingston, Ontario K7L 3N6, Canada;3. Deutsche Bahn International, Suhaim Bin Hamad Street 231, Doha, P.O. Box 200545, Qatar |
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| Abstract: | This paper examines the role of slurry TBM operational parameters, namely face, annulus and grout pressures, on ground deformation. The analysis includes both field data and computational modelling. Field data from the very successful Queens bored metro tunnels (6.9 m diameter) project in New York City is employed to illustrate phenomenologically how ground deformation was controlled via slurry TBM parameters. Computational modelling is then employed to support the experimental findings and to further investigate the relative influence of TBM parameters through parametric analysis. The results quantify the importance of the various pressures on controlling ground deformation. |
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| Keywords: | Ground deformation Slurry Modelling |
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