Table 7.13.

Hand-held augers

Hand-held augersMethodApplicationsLimitations
Graphic
  • Light, portable hand held equipment;

  • Rotated or driven into ground by hand;

  • Typically 50–200 mm diameter;

  • Range of augers available to suit different soils;

  • Some methods limited to <1.25 m depth, others may reach 5 and 10 m;

  • 20–50 m per day achievable.

  • Rudimentary soil examination and profiling;

  • Obtain small disturbed and undisturbed samples;

  • Suitable for sensitive locations (e.g. near noise-sensitive livestock) and for inaccessible sites;

  • Suited to very soft to firm clays and granular soil above water table.

  • Not suitable for unstable soils;

  • Difficult to progress in stiff clays and gravelly soils;

  • Penetration depth limited and small soil samples obtained;

  • Production rates affected by operator's fitness.

Cost factor: Low.
Relevance to glacial/periglacial depositsUnsuitable for obtaining samples from glacial soils. Suitable for sampling only soft soils. Suitable for sampling organic soils and soils in shallow depositional basins for the purposes of developing an environmental history of events on a site to aid the interpretation of site geomorphology.