Total sounding

Total sounding (TS) is a sounding method performed as part of geotechnical investigation. The sounding combines conventional rotary-pressure sounding with bedrock drilling, including rotation, ramming and flushing modes. The result indicates sediment stratification, occasionally soil type and may verify depth to bedrock.[1]

Symbol used in drawings

History

The rotary-pressure sounding method was developed by the Norwegian Geotechnical Institute (NGI) and the Public Roads Administration (NPRA) in 1967.[2]

References
  1. https://www.ngu.no/en/topic/geotechnical-methods
  2. https://trid.trb.org/view/295880


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