The performance of a single row of spaced bored piles to stabilise a London Clay slope on the A12
Following extensive TRL research on the topic, a single row of bored piles spaced at intervals was selected by the HA Maintaining Agent for the remediation of a failed cutting slope on the A12 Colchester Bypass. This London Clay slope has had a history of failures and been previously reinstated, but failed again by deep-seated slippage in the underlying clay. A more permanent structural solution was therefore sought by using the piling technique to stabilise the slope. The performance of the slope and piles was monitored both during construction and over the first two years in service. Instrumentation was installed to monitor the subsurface lateral movements of the ground and piles, the distribution of bending moment in the piles, and the pore water pressure regime in the remediated slope. This report describes the instrumentation and interprets the monitoring data. The implications of the findings are discussed with a view of improving the design guidance for future construction of a similar type. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/1846086418
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Authors:
- CARDER, D R
- BARKER, K J
- Publication Date: 2005-9
Language
- English
Media Info
- Pagination: 22p
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Serial:
- TRL REPORT TRL642
- Publisher: TRL
- ISSN: 0968-4107
Subject/Index Terms
- TRT Terms: Cutting (Earthwork); Ground settlement; Pile groups; Pore water pressures; Repairing; Slope stability; Soil stabilization; Surveillance
- Uncontrolled Terms: Side
- ITRD Terms: 2812: Cutting (earthworks); 3388: Pile group; 5762: Pore water pressure; 3635: Repair; 5792: Settlement; 9074: Side; 5783: Slope stability; 3689: Soil stabilization; 9101: Surveillance
- Subject Areas: Geotechnology; I42: Soil Mechanics; I51: Earthworks and Soil Drainage;
Filing Info
- Accession Number: 01013924
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 1-84608-641-8
- Files: ITRD
- Created Date: Dec 22 2005 11:29AM