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Considerations for a District-Level, Tunnel-Risk, Screening Tool
Author(s)
Date Issued
2016-04-28
Date Available
2016-06-20T15:29:25Z
Abstract
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 photogrammetry. 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.
Sponsorship
European Commission
Other Sponsorship
RETURN: Rethinking Tunneling for Urban Neighbourhoods
Type of Material
Conference Publication
Publisher
Society for Mining, Metallurgy, and Exploration (SME)
Language
English
Status of Item
Peer reviewed
Conference Details
ITA-AITES World Tunneling Congress (WTC 2016), San Francisco, California, USA, 22-28 April 2016
This item is made available under a Creative Commons License
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