THE USE OF CONE PENETROMETER TESTING TO INVESTIGATE SAND SUBSIDENCE AT CROSS-DRAIN LOCATIONS. VOLUME 1

During construction of Interstate I-10 between Baton Rouge and LaPlace, Louisiana, highly organic swamp deposits were excavated and replaced with hydraulically pumped river sand. Recently, excessive settlement was encountered at numerous cross-drain and bridge end locations within the hydraulically placed sand fills. The main objective of this study was to evaluate the subsurface conditions and investigate the reason(s) for sand fill subsidence at cross-drain locations and to determine the possibility of utilizing the electric cone penetration test for such investigation. Sounding data was collected at sites both with and without cross-drains in a grid pattern to a minimum depth of two feet in the Pleistocene clay beneath the hydraulically placed sand fill. All soundings were evaluated within each site location first, and subsequently compared with the representative average values from the other sites. Numerous conclusions based on the study are presented although the major evidence for subsidence is loosely compacted sand at the cross-drain locations. It was also noted that the electric cone penetration test is a valuable tool and should be utilized both immediately after construction, as well as in checking time related effects in subsidence and compaction studies. (Author)

• Record URL:
  • http://www.ltrc.lsu.edu/pdf/2008/Report%20170%20A.pdf
• 
• Corporate Authors:

  Geogulf Incorporated

  10101 Harwin Street
  Houston, TX  United States  77036

  Louisiana Department of Transportation and Development

  Research and Development Section, P.O. Box 94245 Capitol Station
  Baton Rouge, LA  United States  70804-9425

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Yilmaz, R
  • Lakeman, B
  • Melancon, J L
• Publication Date: 1984-3

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: 64 p.
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Compaction; Cone penetrometers; Fills; Geological surveying; Penetrometers; Sand; Subsidence (Geology)
• Old TRIS Terms: Subsurface explorations
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00394757
• Record Type: Publication
• Report/Paper Numbers: FHWA-LA-84-170 Final Rpt.
• Contract Numbers: LA Study 83-3S
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 31 1988 12:00AM