| EPSRC Reference: |
GR/S77776/01 |
| Title: |
Use of enhanced formation stiffness measures for controlling ground movements around excavations |
| Principal Investigator: |
Taylor, Professor RN |
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| Department: |
Sch of Engineering and Mathematical Sci |
| Organisation: |
City, University of London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 2004 |
Ends: |
30 April 2007 |
Value (£): |
328,509
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Summary on Grant Application Form |
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Deep excavations have the potential to cause very large movements in the surrounding ground with consequent damage to existing structures and buried services. Most of the movements are caused by lateral displacement of ground towards the excavation but significant movements outside the excavation are also associated with with heave (upward movement) of the ground beneath the excavation and are related to vertical unloading. The problem is most acute in deep excavations in soft soils.The technique of using heave reducing piles installed beneath an excavation has been proven to be beneficial in reducing the heave movements although there are currently no design guidelines that are available for use by industry to enable the method to be used routinely. The only analysis tool available to industry for investigating such a problem is numerical analysis, which is unable to provide accurate predictions of the influence of piles owing to the complexity of the problem.A key part of the research will be the use of centrifuge model tests that will establish and quantify the influence of geometry, soil stiffness and pile loading on the effectiveness of the technique and help to evaluate sophisticated numerical analyses of the problem.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.city.ac.uk |