A Multi-purpose Platform for Horizontal Subsurface Investigation

Horizontal directional drilling (HDD) provides an effective means of determining the geotechnical and geoenvironmental characteristics of sites with limited access. In particular, HDD can provide significant data for site characterization of suspected contaminated sites and large diameter linear excavations under structures, highways, runways and environmentally sensitive areas. The Smart Subsurface Horizontal Investigation Probe (SSHIP) is an innovative platform that combines an array of miniature sampling tubes and a logging tool for investigating the geotechnical and geoenvironmental properties along a horizontal alignment. The robotic device is controlled from the surface and can transmit real-time data over a distance of up to 300 m. This paper presents the results of bench-scale tests aimed at evaluating the usefulness of two miniature sensors, a miniature resistively probe (MRP) and a miniature cone penetrometer (MCPT), for various soil conditions. Findings show that SSHIP offers a faster and more selective sampling process than current horizontal sampling methodologies. Under laboratory conditions, the MRP is capable of distinguishing between potentially contaminated and uncontaminated sandy soils in the cases of heavy metal and a hydrocarbon. The MCPT, under laboratory conditions, provides reasonably reproducible responses from similar soil samples and unique responses from different soils.

  • Availability:
  • Authors:
    • Ahn, Taesang
    • Allouche, Erez N
    • Yanful, Ernest K
  • Publication Date: 2006-5

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01029941
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 2006 7:48AM