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Stabilisation of a landslide on the M25 highway London's main artery

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.
46d0ebc9-b1e8-4a1b-a0a4-a83784fd54e5
Loveridge, F.A.
fb5b7ad9-d1b8-40d3-894b-bccedf0e8a77
Perry, J.
b5ab7490-06ab-45e9-9a9f-ce51948a9685
Patterson, D.
5e5e5086-bb27-4748-ac92-a9439438fd6a
Carder, D.
1024b810-4895-4bf0-bdc6-080f9b431c99
Davies, J.P.
46d0ebc9-b1e8-4a1b-a0a4-a83784fd54e5
Loveridge, F.A.
fb5b7ad9-d1b8-40d3-894b-bccedf0e8a77
Perry, J.
b5ab7490-06ab-45e9-9a9f-ce51948a9685
Patterson, D.
5e5e5086-bb27-4748-ac92-a9439438fd6a
Carder, D.
1024b810-4895-4bf0-bdc6-080f9b431c99

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, 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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More information

e-pub ahead of print date: 2003
Venue - Dates: 12th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, United States, 2003-06-22 - 2003-06-25
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 349483
URI: https://eprints.soton.ac.uk/id/eprint/349483
PURE UUID: a9623118-75ce-4a0d-8d46-9c519e622936
ORCID for F.A. Loveridge: ORCID iD orcid.org/0000-0002-6688-6305

Catalogue record

Date deposited: 06 Mar 2013 09:03
Last modified: 13 Jun 2019 00:33

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