COMPRESSIBILITY AND SHEAR STRENGTH CHARACTERISTICS OF IMPACT COMPACTED LACUSTRINE CLAY

The effects of the primary compaction variables on the compressibility and shear strength characteristics of laboratory impact compacted lacustrine clay, both short and long term were investigated. The as-compacted prestress decreases with compaction water content, and increases with compaction energy particularly for dry-of-optimum water content samples. The percent volumetric strains are dependent on compaction water content, as-compacted void ratio, as-compacted prestress and confining pressure. Skempton's pore pressure parameter at failure in dependent on the "overconsolidation ratio", compaction water content and as-compacted void ratio. The effective stress strength parameters for the shearing conditionss investigated are dependent on the as-compacted void ratio and compaction water content. Using statistical techniques, prediction models were developed for the shear strength and characteristics within an embankment is also presented and illustrated with an example. (Author)

• Corporate Authors:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University, School of Civil Engineering
  West Lafayette, IN  United States  47907-1284

  Indiana Department of Highways

  Indianapolis, IN  United States 

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Nwabuokei, S O
• Publication Date: 1985-3

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 512 p.

Subject/Index Terms

• TRT Terms: Compacted clays; Compressibility; Confining pressure; Mechanical strain; Moisture content; Pore pressure; Prestressing; Shear strength; Void ratios
• Old TRIS Terms: Strains
• Subject Areas: Geotechnology; Highways; I41: General Soil Surveys;

Filing Info

• Accession Number: 00395696
• Record Type: Publication
• Report/Paper Numbers: JHRP-85-6
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 31 1985 12:00AM