Model for Schedule Risk Evaluation in Subsurface Explorations

Subsurface explorations are performed to provide necessary information on soil characteristics and properties. Timely completion of the subsurface explorations is important for successful project development and design. Failure to deliver geotechnical information may cause project delay and damage project performance. Previous literature has seldom examined schedule performance and delay of subsurface exploration. This study aimed to evaluate the operational performance of subsurface exploration by analyzing empirical data on 77 subsurface exploration projects collected between October 2009 and June 2011. The delay analysis identified the primary effects on operational performance of subsurface exploration, namely, unclear data requirements, scope change, permitting, and unexpected conditions. A forecasting model to predict project duration from variables such as number of borings, boring types, early performance warnings, driller issues, and risk events is proposed, and a series of preliminary recommendations to mitigate delay risk is suggested.

• Record URL:
  • https://doi.org/10.3141/2433-03
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309295215
• Authors:
  • Lu, Yujie
  • Cui, Qingbin
  • Chen, Xin
  • Baecher, Gregory
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 18–26
• Monograph Title: Geology and Properties of Earth Materials 2014
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2433
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Boring; Construction scheduling; Evaluation and assessment; Forecasting; Geological surveying; Geotechnical engineering; Risk analysis; Soil profiles; Subsoil
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 01515062
• Record Type: Publication
• ISBN: 9780309295215
• Report/Paper Numbers: 14-2169
• Files: TRIS, TRB, ATRI
• Created Date: Feb 21 2014 3:16PM