Instrumentation of freight tunnel in Chicago

Alireza Ayoubian*, Richard J Finno

*Corresponding author for this work

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

1 Scopus citations


The Block 37 development in downtown Chicago involved construction of a high rise building, two tunnel connections and a new platform. During excavation of the tunnel connections, cracks were noted in the freight tunnel underlying one of the excavation zones. The tunnels at that location were horseshoe-shaped, approximately 7.7-foot wide and 9.7-foot high and were instrumented. The freight tunnels house sensitive utilities vital to the City of Chicago. The objective of this paper is to evaluate the instrumentation program employed for freight tunnels at Block 37, analyze the data and help design more effective instrumentation plans for Chicago freight tunnels for future projects.

Original languageEnglish (US)
Title of host publicationNorth American Tunneling 2010 Proceedings, NAT 2010
Number of pages14
StatePublished - Sep 28 2010
Event10th North American Tunneling Conference, NAT 2010 - Portland, OR, United States
Duration: Jun 20 2010Jun 23 2010

Publication series

NameNorth American Tunneling 2010 Proceedings, NAT 2010


Other10th North American Tunneling Conference, NAT 2010
Country/TerritoryUnited States
CityPortland, OR

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology


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