CHARACTERISTIC PARAMETERS OF TILLS IN RELATION TO EARTHWORKS

Evidence from fresh exposures in subglacial tills shows that they contain lenses and layers of sands and gravels and softer clays. This suggests that many subglacial tills could be described as deformation tills and excavation failures should be expected. Foundations in glacial tills are often over designed. Extensive testing programmes have shown that the mobilised strength and stiffness of these tills are underestimated. Further, the design methods and chosen parameters may not be appropriate for the subglacial tills. These issues need to be addressed if economic, safe solutions are to be developed for earthworks in glacial tills. For the covering abstract see ITRD E122412.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1898012970
• Corporate Authors:

  INSTITUTION OF ENGINEERS OF IRELAND

  22 CLYDE ROAD
  BALLSBRIDGE, DUBLIN 4,   Ireland 
• Authors:
  • CLARKE, B G
  • HUGHES, D B
  • Hashemi, S Mehdi
• Publication Date: 2001

Language

• English

Media Info

• Features: References;
• Pagination: 8 p.
• Serial:
  • PROCEEDINGS OF THE SEMINAR 'EARTHWORKS IN TRANSPORTATION', HELD IEI, DUBLIN, IRELAND, 12 DECEMBER 2001
  • Publisher: INSTITUTION OF ENGINEERS OF IRELAND

Subject/Index Terms

• TRT Terms: Clay; Conferences; Design; Earthwork; Glacial soils; Gravel; Properties of materials; Sand; Soil mechanics; Stiffness; Strength of materials
• ITRD Terms: 4177: Clay; 8525: Conference; 9011: Design (overall design); 3653: Earthworks; 4011: Glacial; 4575: Gravel; 5925: Properties; 4105: Sand; 5755: Soil mechanics; 5931: Stiffness; 5544: Strength (mater)
• Subject Areas: Design; Geotechnology; Materials;

Filing Info

• Accession Number: 00982422
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 1-898012-97-0
• Files: ITRD
• Created Date: Dec 2 2004 12:00AM