FLOW AND FRACTURE PROPERTIES OF SEATTLE CLAYS

SOME OF THE MOST IMPORTANT SHEAR STRENGTH THEORIES OF SOILS THAT HAVE BEEN ADVANCED SINCE THE EARLY 1930'S ARE REVIEWED AND ANALYZED. THE SHEAR BEHAVIOR OF SEATTLE CLAYS CANNOT BE ANALYZED BY CONVENTIONAL STRENGTH THEORIES BECAUSE THE FAILURE STRESS DEPENDS ON TIME AND FAILURE STRAIN DEPENDS ON THE LEVEL OF STRESS. CONSEQUENTLY, A NEW SHEAR STRENGTH THEORY THAT CONSIDERS TIME EFFECTS AND DEFINES THE DESIGN STRENGTH OF A SOIL EXHIBITING TIME-DEPENDENT SHEAR BEHAVIOR AT THE CREEP LIMIT IS PROPOSED. FOR THE THREE TYPES OF SOILS TESTED, THE DESIGN SHEAR STRENGTH (CREEP LIMIT) OF SEATTLE CLAYS IS FOUND TO BE CLOSE TO 50 PERCENT OF THEIR SHORT-TERM SHEAR STRENGTH. A SERIES OF PARAMETERS ARE OFFERED FOR IDENTIFYING THE DEFORMATION AND FLOW PROPERTIES OF SEATTLE SOILS. /FHWA/

• Corporate Authors:

  University of Washington, Seattle

  Seattle, WA  United States  98195

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Washington State Department of Highways

  Olympia, WA  United States 
• Authors:
  • Sherif, M A
• Publication Date: 1965-1

Media Info

• Pagination: 78 p.
• Serial:
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Clay; Deformation; Flow; Preconsolidation pressure; Shear strength; Slope stability; Soil mechanics; Soils
• Uncontrolled Terms: Soil deformation
• Old TRIS Terms: Preconsolidated clay
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00228689
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Intrm Rept
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 5 1973 12:00AM