Extreme Geotechnical Response to High Heat From Tunnel Fires

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dc.contributor.advisorMarshall, Andre Wen_US
dc.contributor.authoryong, meng wahen_US
dc.contributor.departmentFire Protection Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2005-02-02T06:47:11Z
dc.date.available2005-02-02T06:47:11Z
dc.date.issued2004-12-03en_US
dc.description.abstractThis study investigates the effects of heating on the transient behavior of the geologic media surrounding the tunnel involved in a severe fire, which typically involve extreme temperature and prolonged duration. Currently, there is little research being done in this area. An analytical model has been developed to predict the temperature rise of dry soil in the experimental soil column configuration and there is good agreement between analytical and experimental results. In water-saturated soils, the onset of convection happens in soil of higher permeability and there is propagation of a saturation temperature front at the onset of boiling, with greater propagation speed as permeability increases. There is also significant increase (~500%) in the pore water pressure building up in finer-grained saturated soil. This project then examines how these thermal transport modes and the pore water pressure increase in the soil medium can affect the stability of the tunnel lining.en_US
dc.format.extent1890543 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/2109
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Environmentalen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pqcontrolledEngineering, Civilen_US
dc.subject.pquncontrolledimpact of tunnel fire on soil;extreme temperatureen_US
dc.subject.pquncontrolledpore pressureen_US
dc.subject.pquncontrolledtunnel stability;geotechnical response to fireen_US
dc.titleExtreme Geotechnical Response to High Heat From Tunnel Firesen_US
dc.typeThesisen_US

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