Impact of discontinuity orientation and roof shape on the stability of shallow tunnels and intersections

W. Peck, D. Sainsbury, M. Lee

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Geology and ground conditions are critical to the design of underground openings, but shape is also a key parameter for assessing the long-term stability of shallow caverns and tunnels. The distinct element code UDEC has been used to assess the performance of both flat and arched-roofed shallow tunnels and intersections, for a variety of geological settings. Three-dimensional modelling has shown that instability can develop at the intersection of relatively flat-roofed tunnels, with the greatest area of instability being associated with the flattest roof designs.

Original languageEnglish
Title of host publicationUnderground - The Way to the Future
Subtitle of host publicationProceedings of the World Tunnel Congress, WTC 2013
Pages2054-2061
Number of pages8
Publication statusPublished - 2013
Externally publishedYes
EventWorld Tunnel Congress (WTC) / General Assembly of the International-Tunnelling-and-Underground-Space-Association (ITA) 2013: Underground - The Way to the Future - Geneva, Switzerland
Duration: 31 May 20137 Jun 2013
Conference number: 39th
http://www.tunnel-online.info/en/artikel/tunnel__1797134.html

Conference

ConferenceWorld Tunnel Congress (WTC) / General Assembly of the International-Tunnelling-and-Underground-Space-Association (ITA) 2013
Abbreviated titleWTC 2013
CountrySwitzerland
CityGeneva
Period31/05/137/06/13
Internet address

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