INFLUENCE OF ROD ROTATION ON PENETRATION RESISTANCE IN FRICTION SOILS

A new light penetrometer, the lsd-henetrometer, which combines two well-known and approved methods has been developed at the Royal Institute of Technology (KTH) in Stockholm. In soft soils the sounding rod is forced down statically and the penetration resistance is measured with a spring loaded gauge. If the resistance exceeds 750 n a dynamic testing technique is applied: a 10 kg drop hammer drives the rod down while it is being rotated every 20 cm. Results from a test comparing different sounding methods at a site with relatively dense sand are described. These indicate that the lsd-penetrometer can be used down to a depth of about 15 M and that it shows good correlation with the Swedish weight penetrometer and the standardized light German dynamic penetrometer. The new penetrometer can be used: (a) for preliminary investigation of large areas with soft soils, (b) for foundation investigations of light structures, (c) for compaction control, and (d) for investigations in water or in areas with difficult terrain conditions. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00422177
• Corporate Authors:

  Svenska Vag-Och Vattenbyggaren Riksforband

  Regeringsgaten 98
  S-11139 Stockholm,   Sweden 
• Authors:
  • MASSARSCH, R
  • Broms, B
  • Sundquist, O
• Publication Date: 1976

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 55-56
• Serial:
  • Vag-Och Vattenbyggaren
  • Volume: 22
  • Issue Number: 8/9
  • Publisher: Svenska Vag-Och Vattenbyggaren Riksforband
  • ISSN: 0042-2177

Subject/Index Terms

• TRT Terms: Dynamic penetration test; Dynamic tests; Granular soils; Measuring instruments; Pendulum tests; Penetration resistance; Penetrometers; Resistance (Mechanics); Sand; Soils; State of the art studies; Static penetration test
• Uncontrolled Terms: Resistance (Mater)
• ITRD Terms: 6155: Apparatus (measuring); 6296: Dynamic penetration test; 4109: Non cohesive soil; 6285: Penetration; 4105: Sand; 6294: Static penetration test; 5544: Strength (mater)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00145445
• Record Type: Publication
• Source Agency: Swedish National Road and Traffic Research Institute
• Files: ITRD, TRIS
• Created Date: Apr 27 1977 12:00AM