Value of information analysis in rock engineering: a case study of a tunnel project in Äspö Hard Rock Laboratory
Journal article, 2015

Geoengineering prognoses are often based on data from a limited number of investigations of soil and rock mass. There is generally a desire to reduce the uncertainty in the prognoses while minimising the investigation costs. Value of Information Analysis (VOIA) is a support for decisions regarding investigation strategies and the aim of this paper is to present methodology for VOIA that takes into account four decision alternatives where the input data could be provided by experts. The methodology will be applied in a case study where the value of information related to an investigation borehole will be calculated. The results indicate that the value of information of the borehole is low compared with the realisation costs of the investigation. It was found that models for VOIA in underground construction projects are complex but that the analysis can be simplified with extensive use of expert knowledge and calculations of the value of perfect information as a benchmark for investigation strategies.

decision analyses

probabilistic site characterization and modelling

construction cost

Bayesian methods

Author

Miriam Zetterlund

Chalmers, Civil and Environmental Engineering, GeoEngineering

Tommy Norberg

University of Gothenburg

Chalmers, Mathematical Sciences, Mathematical Statistics

Lars O Ericsson

Chalmers, Civil and Environmental Engineering, GeoEngineering

Jenny Norrman

Chalmers, Civil and Environmental Engineering, GeoEngineering

Lars Rosen

Chalmers, Civil and Environmental Engineering, GeoEngineering

Georisk

1749-9518 (ISSN)

Vol. 9 1 9-24

Areas of Advance

Building Futures (2010-2018)

Subject Categories

Geotechnical Engineering

Infrastructure Engineering

DOI

10.1080/17499518.2014.1001401

More information

Created

10/7/2017