Statistical aspects of field measurements

Field measurements in soil engineering give indications of either the overall soil response in large scale tests or of the response at discrete positions in the soil in small scale tests. In contrast to laboratory measurements the field tests normally do not provide a direct measure of the wanted soil parameter but require interpretation through calibration or conversion factors, and hence the accuracy of the test method must be assessed. Classical statistical methods are often useful in assessing the accuracy and also in planning the scope and extent of a field investigation for point estimates of parameters, but have limitations in that the statistical 'best' estimator may not be the 'best' design parameter in engineering practice. When planning long term large scale field measurements the long life reliability of the instrumentation can often be assessed statistically prior to installation, leading to more efficient system design (A).

• Record URL:
  • http://arrbknowledge.com
• Authors:
  • Lumb, P
• Conference:
  • Australian Road Research Board (ARRB) Conference, 4th, 1968, Melbourne
• Publication Date: 1968

Language

• English

Media Info

• Pagination: 1761-71
• Serial:
  • Volume: 4
  • Issue Number: 2

Subject/Index Terms

• TRT Terms: Calibration; Field tests; Measurement; Properties of materials; Soils; Statistical analysis; Tests
• ATRI Terms: Calibration; Field test; Material properties; Measurement; Soil; Statistical analysis; Test
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 01441609
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 24 2012 11:46PM