Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

Methods of increasing fatigue life and reducing runway deflections following an explosion beneath a cement concrete runway

John W. Bulla,*, C.H. Woodfordb
aSchool of Civil Engineering and Geosciences, bInformation Systems and Services, University of Newcastle upon Tyne, Claremont Road, Newcastle upon Tyne NE1 7RU, UK

  Full Text
This research considered the effect of an underground explosion on the fatigue life of a cement concrete runway and the supporting subgrade following the formation of a camouflet. For an unpressurized and empty camouflet void, the fatigue life of the runway increased or decreased depending upon the material property sets and depth of detonation. Pressurizing the void reduced runway surface displacements and for two material property sets, increased the subgrade fatigue life. For the unpressurized void, the minimum runaway surface displacements occurred for a filled camouflet void. In the apparently undisturbed subgrade outside the cone of disturbance, the fatigue life reduced for all material property sets.

Keywords:  Camouflet; Concrete; Fatigue life; Finite elements; Runway repair; Underground explosion

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