Stabilisation of a landslide on the M25 highway London's main artery
Stabilisation of a landslide on the M25 highway London's main artery
This paper describes the lessons learnt in the assessment, stabilization and subsequent monitoring of a landslide, which mobilized over 90,000 m3 of material and threatened to completely close England’s busiest highway, the M25 around London. The wedge shaped slide occurred on the 19th December 2000 and extended some 80m up the slope with a slip surface up to 10 m below the ground surface. Due to the strategic importance of the M25, the design and construction was fast tracked to be completed before the fall rains when further movements would be inevitable. The adopted solution used a combination of 1050 mm diameter augered piles, a deep cutoff trench and counterforts at the toe and was extensively instrumented.
The collected data for the winter 2001/02 demonstrates that not only were the remedial works successful in stabilizing the slope but that the proposed design method can accurately predict the bending moments and forces produced in the piles
Davies, J.P.
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Loveridge, F.A.
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Perry, J.
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Patterson, D.
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Carder, D.
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Davies, J.P.
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Loveridge, F.A.
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Perry, J.
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Patterson, D.
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Carder, D.
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Davies, J.P., Loveridge, F.A., Perry, J., Patterson, D. and Carder, D.
(2003)
Stabilisation of a landslide on the M25 highway London's main artery.
12th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, Boston, United States.
22 - 25 Jun 2003.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper describes the lessons learnt in the assessment, stabilization and subsequent monitoring of a landslide, which mobilized over 90,000 m3 of material and threatened to completely close England’s busiest highway, the M25 around London. The wedge shaped slide occurred on the 19th December 2000 and extended some 80m up the slope with a slip surface up to 10 m below the ground surface. Due to the strategic importance of the M25, the design and construction was fast tracked to be completed before the fall rains when further movements would be inevitable. The adopted solution used a combination of 1050 mm diameter augered piles, a deep cutoff trench and counterforts at the toe and was extensively instrumented.
The collected data for the winter 2001/02 demonstrates that not only were the remedial works successful in stabilizing the slope but that the proposed design method can accurately predict the bending moments and forces produced in the piles
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e-pub ahead of print date: 2003
Venue - Dates:
12th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, Boston, United States, 2003-06-22 - 2003-06-25
Organisations:
Infrastructure Group
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Local EPrints ID: 349483
URI: http://eprints.soton.ac.uk/id/eprint/349483
PURE UUID: a9623118-75ce-4a0d-8d46-9c519e622936
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Date deposited: 06 Mar 2013 09:03
Last modified: 14 Mar 2024 13:13
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Contributors
Author:
J.P. Davies
Author:
J. Perry
Author:
D. Patterson
Author:
D. Carder
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