Shear Strength Evaluation of Clay-Rock Mixtures

Details

• Journal Article:
  Slope Stability 2000. Geotechnical Special Publication No. 101
• Personal Author:
  Iannacchione, Anthony T. ; Vallejo, Luis E.
• Description:
  At present, there is little knowledge concerning the shear strength of clays containing floating rock particles with concentrations from 0 to 30%. In practice, the effect of rock particles is typically disregarded in shear strength analysis. The two primary reasons for this are: 1) a lack of agreement concerning the influence of rock particles on material strength, and 2) the expense and difficulty of testing clay-rock mixtures with existing laboratory procedures. These factors have impeded the development of successful slope remediation design techniques for colluvium derived from resistant sedimentary rocks or spoil produced from surface mining. This study reviewed 31 technical papers which contain analysis of shear strengths for clay and sands with varying mixtures of rock particles. These technical papers published over the last 40 years, are comprised of field case studies, laboratory evaluations, and theoretical analysis. Evaluation of this body of knowledge has shown that the shear strength gradually increases with increasing percentages of floating particles in unsaturated clays. [Description provided by NIOSH]
• Subjects:
  Laboratories Mining Occupational Health Safety
• Keywords:
  Analytical processes; Analytical instruments; Case studies; Soil sampling; Soil analysis; Particle counters; Statistical analysis; Laboratory testing
• Source:
  Slope Stability 2000. Geotechnical Special Publication No. 101. Reston, VA: American Society of Civil Engineers, 2000 Jan; :209-223
• Series:
  Mining Publications
• ISBN:
  0784405123
• Document Type:
  Text
• Funding:
  Slope Stability 2000. Geotechnical Special Publication No. 101. Reston, VA: American Society of Civil Engineers, 2000 Jan; :209-223
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  15 pdf pages
• NIOSHTIC Number:
  nn:20020960
• Editor(s):
  Griffiths DV; Fenton GA; Martin TR
• Federal Fiscal Year:
  2000
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0c3eb7a041319bf345a948fa4e08fad9bbda26f5364e63f29114ee7fdd626bb216268208a233c9509d1d4b38ac84485b22265a1c42b1a4b3e9026dcc3ea3c9cd
• Download URL:
  https://stacks.cdc.gov/view/cdc/9407/cdc_9407_DS1.pdf
• File Type:
  [PDF - 2.40 MB ]