Considerations for a district-level, tunnel-risk, screening tool

Ehsan Moradabadi, Debra F. Laefer

Research output: Chapter in Book/Report/Conference proceedingConference contribution


To more rigorously address tunneling risks to above-ground structures, vulnerability evaluation of all structures along a tunnel route is required. This multi-block area along the route can be considered a district. To fully assess each structure within a tunnel's zone of influence, a multi-block or district-level model may provide new insights as to risk evaluation and mitigation strategies. However populating such a model with the existing geometry of the built environment poses a major challenge as measured drawings are not readily available for all structures along a tunnel's route. Cost-effective population of such a model could arguably involve remote sensing data in the form of laser scanning or photogramme-try. However even for unreinforced masonry structures, where external, above-ground geometries can be captured, without a prohibitively expensive building-by-building, in person survey many factors would remain unknown. To consider these uncertainties in an automatic way, a performance assessment framework is proposed. Such a framework allows a more rigorous, initial, risk quantification than is currently possible within the simple empirical models generally being used in industry when tunneling risk is initially assessed. This paper introduces (within the allowable space limits of this format) considerations for auto-population and application of a district-level, tunnel-risk screening tool.

Original languageEnglish (US)
Title of host publicationITA-AITES World Tunnel Congress 2016, WTC 2016
PublisherSociety for Mining, Metallurgy and Exploration
Number of pages8
ISBN (Electronic)9781510822627
StatePublished - 2016
EventITA-AITES World Tunnel Congress 2016, WTC 2016 - San Francisco, United States
Duration: Apr 22 2016Apr 28 2016

Publication series

NameITA-AITES World Tunnel Congress 2016, WTC 2016


OtherITA-AITES World Tunnel Congress 2016, WTC 2016
Country/TerritoryUnited States
CitySan Francisco

ASJC Scopus subject areas

  • Civil and Structural Engineering


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