SLOPE STABILITY OF CERTAIN SELECTED COLLUVIAL SOILS

The objective of this study is to characterize natural clayey colluvial soils that occur in eastern Oklahoma. Three study sites were selected in areas of known landslides. Piezometers and permeability bore holes were placed in the soils in undisturbed areas adjacent to landslides. Undisturbed samples were taken for laboratory analysis. Rainfall at the sites were monitored continuously. Horizontal drains were installed to determine flow rates of subsurface water within the soils. A stability assessment of the soils is presented to demonstrate the degree of landslide hazard in these areas. /Author/

• Supplemental Notes:
  • Sponsored by and performed in cooperation with Federal Highway Administration.
• Corporate Authors:

  Oklahoma Department of Transportation

  200 NE 21st Street
  Oklahoma City, OK  United States  73105
• Authors:
  • Hayes, C J
• Publication Date: 1977-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 70 p.

Subject/Index Terms

• TRT Terms: Boreholes; Clay; Clay soils; Colluvium; Drainage; Groundwater; Horizontal drains; Landslides; Permeability; Piezometers; Rainfall; Slope stability; Soil mechanics; Water table
• Old TRIS Terms: Ground water conditions
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00167839
• Record Type: Publication
• Report/Paper Numbers: FHWA-OK-77-6 Final Rpt.
• Contract Numbers: HP&R
• Files: TRIS, STATEDOT
• Created Date: Jan 13 1978 12:00AM