Response Study of Underground Pipes Due to Varying Impact of Surface Accidental Explosions

Electronic journal of geotechnical engineering

Akinola Johnson Olarewaju¹ 

[1] Civil Engineering Department, School of Engineering,Federal Polytechnic, Ilaro, P.M.B. 50, ILARO, Ogun State, NIGERIA

关键词: Surface Accidental Explosion;    Underground Pipes;    Response;    Pressure Loads;    Explosives.;   

DOI  :  

来源: Oklahoma State University

【 摘 要 】

Accidentalexplosionscancreatesufficienttremorstodamageabovegroundandsubstructuresoverawidearea.Inthisstudy,effectsofvaryingdegreesandimpactofsurfaceaccidentalexplosionsonburiedpipeswereobserved.Steelandconcretepipesburiedinloosesand,densesandandundrainedclayat1mdepthbelowthegroundsurfaceweremodelled.Loadparametersduetosurfaceaccidentalexplosionsweredeterminedforvariousexplosivesrangingfrom10kgTNTto250kgTNTusingUnifiedFacilitiesCriteria(2008).AnalysiswascarriedoutonsimulatedmodelsusingtimeintegratedtechniquesinABAQUS/Explicit,afiniteelementnumericalcode.Observedparametersatthecrown,invertandspring-lineofburiedpipesaredisplacement,pressure,stressandstrain.Fromtheresults,remarkableresponsewasobservedatsurfaceaccidentalexplosionloadsmagnitude(eitherside-onoverpressureorpeakreflectedpressure)of10kPaandabove.Forexplosiongeneratingpressureloadsoflessthan10kPa,noresponsewasobservedinthepipesburiedinthegroundmediaconsidered.

【 授权许可】

Unknown