SIMULTANEOUS DRILLING AND SOIL SAMPLING USING HOLLOW-STEM AUGERS

Hollow-stem continuous flight augers are convenient for drilling comparatively shallow boreholes required for engineering soil surveys of extensive areas. With these and conventional sampling equipment it was found that sampling operations often took more time than drilling, especially when continuous samples were required. Equipment has been devised which permits the drilling and sampling operations to be carried out simultaneously. An open-drive sampler extending beyond the mouth of the augers remains stationary while the augers rotate, and both advance together. The system has been used successfully in several kinds of soil, and is usually preceded by an adjacent cone penetration test to locate any layers likely to damage the sampler. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Technical Publications Limited

    C.P.O. 3047
    Wellington,   New Zealand 
  • Authors:
    • Thomas, R F
    • Barker, P R
  • Publication Date: 1974-9

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 254-256
  • Serial:
    • NEW ZEALAND ENGINEERING
    • Volume: 29
    • Issue Number: 9
    • Publisher: Institution of Professional Engineers New Zealand
    • ISSN: 0028-808X

Subject/Index Terms

Filing Info

  • Accession Number: 00096886
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1975 12:00AM