A NUMERICAL INVESTIGATION INTO THE IMPACT OF PILE GROUP LOADING ON TUNNELS
In the urban environment deep foundations are frequently constructed in locations very close to existing tunnels. Tunnels can often only tolerate minimal movements. The construction and loading of deep foundations cause ground movements and stress changes that can adversely affect the tunnels. Tunnel owners therefore place restrictions on the construction of deep foundations close to their tunnels. However, the actual impact of piles on tunnels is not well understood. It is not clear how the interaction effects vary with the spacing between the piles and the tunnel. This paper introduces a numerical approach to assessing the impact of pile group loading on adjacent tunnels. Three dimensional finite element analyses are used to justify a simplified two dimensional plane strain approach. The plane strain approach is then used to investigate the impact of pile loading on tunnels. A parametric study on significance of reducing the clear distance between the piles and the tunnel and on the number of pile rows adjacent to the tunnel is presented.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/3000091696
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Corporate Authors:
Swiss Federal Institute of Technology Zurich
Institute for Geotechnical Engineering
Zurich, Switzerland 8093 -
Authors:
- SCHROEDER, F C
- ADDENBROOKE, T I
- Potts, D M
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Conference:
- Planning and Engineering for the Cities of Tomorrow. Second International Conference on Soil Structure Interaction in Urban Civil Engineering
- Location: Zurich, Switzerland
- Date: 2002-3-7 to 2002-3-8
- Publication Date: 2002
Language
- English
Media Info
- Features: Appendices; Figures; References;
- Pagination: p. 205-212
Subject/Index Terms
- TRT Terms: Construction; Finite element method; Foundations; Mathematical analysis; Pile groups; Spacing; Stresses; Tunnels; Urban areas
- Uncontrolled Terms: Externally imposed ground movements
- Subject Areas: Bridges and other structures; Construction; Public Transportation;
Filing Info
- Accession Number: 00930483
- Record Type: Publication
- ISBN: 3000091696
- Files: TRIS
- Created Date: Sep 5 2002 12:00AM