Parameter Identification for Tunnels in Elastoplastic Ground Using a New Tunnel Convergence Model

Backanalysis is a procedure where the parameters of an analysis are determined to match predicted and measured results as closely as possible. Backanalysis usually uses advanced numerical models, and as such is usually not carried out in routine geotechnical practice. This paper presents the development of a simplified procedure for probabilistic backanalysis of geotechnical parameters using a newly developed tunnel convergence model. The use of the proposed technique is demonstrated using idealized tunnel geometry and synthetically generated monitoring data. Finally, the performance of the proposed backanalysis procedure against a real case tunnel is demonstrated using a section of the Heshang Road Tunnel.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 3229-3238
  • Monograph Title: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Subject/Index Terms

Filing Info

  • Accession Number: 01530393
  • Record Type: Publication
  • ISBN: 9780784412121
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 2:07PM