IN SITU TESTS BY FLAT DILATOMETER

A flat blade shaped tip, with a thin flat circular steel membrane fitted flush with one side, is jacked into the ground. At 20-cm depth intervals the penetration is stopped, the membrane is inflated and the following readings are taken: A = pressure at which the membrane starts to expand against the soil; B = pressure needed to deflect the membrane center 1.00 mm against the soil. Simple expressions derived in the paper are used to determine the parameters I sub D (material index), K sub D (horizontal stress index), E sub D (dilatometer modulus) from the field readings. The profiles of I sub D, K sub D E sub D are with the empirical correlations presented in the paper to obtain estimates of a number of soil parameters used in geotechnical engineering design. (ASOE)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Marchetti, S
• Publication Date: 1980-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 299-321
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 106
  • Issue Number: GT3
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Dilation; Field tests; Measuring instruments; Soil penetration test; Soil tests; Testing equipment
• Old TRIS Terms: Insitu methods
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00314632
• Record Type: Publication
• Report/Paper Numbers: ASCE 15290
• Files: TRIS
• Created Date: Oct 8 1980 12:00AM