EVALUATING SITE INVESTIGATION QUALITY USING GIS AND GEOSTATISTICS

Current practice in the characterization of subsurface conditions usually involves the interpretation of data from lab and in-situ tests using deterministic analysis methods. These methods do not reflect the uncertainty inherently associated with the estimation of geotechnical parameters. Also, there are no commonly accepted methods for evaluating the quality of the investigation or estimation of the impact of additional sampling in a quantitative manner. This paper describes the development and implementation of a performance-based investigation and monitoring approach to assess the quality, or thoroughness, of site investigation and monitoring activities in a quantitative, spatially sensitive manner. Thoroughness images are based on probability values generated using geostatistics and are designed to enable users to better assess the likelihood that design or regulatory criteria will be met. The approach was implemented within a GIS and was evaluated using an existing geotechnical data set.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Parsons, R L
  • Frost, J D
• Publication Date: 2002-6

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 451-461
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 128
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Foundation engineering; Geographic information systems; Geotechnical engineering; Highway engineering; Highway transportation; Soil mechanics; Surveying methods and processes
• Uncontrolled Terms: Geostatistics; Site evaluation
• Subject Areas: Design; Geotechnology; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I42: Soil Mechanics;

Filing Info

• Accession Number: 00925079
• Record Type: Publication
• Files: TRIS
• Created Date: May 30 2002 12:00AM