GEOTECHNICAL CONSIDERATIONS AND TECHNIQUES FOR WIDENING HIGHWAY EARTHWORKS
This Advice Note is issued for the guidance of engineers responsible for the design of the geotechnical and associated aspects of widening highway earthworks, particularly motorway widening schemes. It described some of the factors which may influence slope stability and gives information on some of the methods available. It is not, however, a design guide. Sections 3, 4, and 5 of this Advice Note set out considerations which are generally applicable to the widening of highway earthworks. Techniques involving earthworks or soil strengthening are then described in Section 6, such as using reinforced soil, soil nailing and soil improvement. methods based on the use of retaining walls or other structural solutions are generally more expensive, but in some cases will be unavoidable. This Advice Note does not cover such methods, but guidance may be obtained in Technical memorandum BE 3/78 (revised in 1978), and Departmental Standard BD 30/87. (TRRL)
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Corporate Authors:
Department for Transport, England
Highways Engineering, Building 1, Victoria Road
South Ruislip, Middlesex England - Publication Date: 1991
Media Info
- Features: References;
- Pagination: 26 p.
Subject/Index Terms
- TRT Terms: Earthwork; Geotechnical engineering; Highways; Pavement widening; Slope stability; Slopes; Soil stabilization; Strength of materials; Structural strengthening
- Uncontrolled Terms: Widening
- ITRD Terms: 2937: Drainage; 3653: Earthworks; 2801: Embankment; 2755: Highway; 3349: Reinforced earth; 3359: Retaining wall; 5783: Slope stability; 4156: Soil; 3357: Soil nailing; 177: Specifications; 8119: United Kingdom; 2889: Widening (road, bridge)
- Subject Areas: Design; Geotechnology; Highways;
Filing Info
- Accession Number: 00619940
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Report/Paper Numbers: HA 43/91
- Files: ITRD, TRIS
- Created Date: Mar 31 1992 12:00AM