INVESTIGATION OF THE STABILITY OF EARTHWORK CONSTRUCTION ON THE ORIGINAL LINE OF SEVENOAKS BY-PASS, KENT
THIS REPORT DESCRIBES SOME OF THE INVESTIGATIONS CARRIED OUT ALONG THE LINE OF THE ORIGINAL ROUTE AND CONSIDERS THE STABILITY OF THE EARTHWORKS. THE INVESTIGATIONS REVEALED EIGHT AREAS WHERE SOME HISTORY OF INSTABILITY WAS INDICATED. THE MATERIALS WITHIN THESE AREAS WERE FOUND TO CONTAIN NATURAL SLIP SURFACES RUNNING APPROXIMATELY PARALLEL WITH THE GROUND SURFACE. THE MAIN FACTOR GOVERNING THE FEASIBILITY OF EARTHWORK CONSTRUCTION ACROSS THESE AREAS WAS THE REQUIREMENT THAT THE WATER TABLE IN THE UNSTABLE AREAS BE DEPRESSED TO A LEVEL BELOW THAT OF THE MAIN SLIP SURFACE AND MAINTAINED AT THAT POSITION. IF THIS COULD BE ACHIEVED, PRELIMINARY STABILITY CALCULATIONS SHOWED THAT AN EMBANKMENT ABOUT 5 M IN HEIGHT COULD BE CONSTRUCTED USING LIGHT-WEIGHT FILL AND SIDE-SLOPES OF 1 IN 4. /TRRL/
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Supplemental Notes:
- RRL REPT LR 393
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Corporate Authors:
Transport and Road Research Laboratory (TRRL)
Wokingham, Berkshire United Kingdom -
Authors:
- SYMONS, I F
- Booth, A I
- Publication Date: 1971
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: 38 p.
Subject/Index Terms
- TRT Terms: Bypasses; Cutting; Earthwork; Embankments; Stability (Mechanics); Water table
- Uncontrolled Terms: Site investigation
- Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;
Filing Info
- Accession Number: 00232372
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: TRIS
- Created Date: Jun 11 1972 12:00AM