Considerations for a District-Level, Tunnel-Risk, Screening Tool

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Title: Considerations for a District-Level, Tunnel-Risk, Screening Tool
Authors: Moradabadi, Ehsan
Laefer, Debra F.
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Date: 28-Apr-2016
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.
Funding Details: European Commission
Type of material: Conference Publication
Publisher: Society for Mining, Metallurgy, and Exploration (SME)
Keywords: Tunneling settlementPerformance assessment
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Language: en
Status of Item: Peer reviewed
Conference Details: ITA-AITES World Tunneling Congress (WTC 2016), San Francisco, California, USA, 22-28 April 2016 2016-06-20T15:29:25Z
Appears in Collections:Civil Engineering Research Collection

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