埋地铸铁管道落石冲击响应现场试验研究

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中图分类号：O347;TE973 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202311038

Abstract：Toproperlsstepactofcolapsingocksndstoeprojeilesouridastonpipeis，fulalepipeliepr buriedon-sitefofallngockimpacttCombiediaicrntstigtchqs，tedamicstainaracterstiofto pipelinesunderthefalingrock impact wereanalyzed，tedistributionpattsofynamicstraininthepipelineswerestudied，anda functionalrelationsipbetween pipelinedynamicstrainand measurement locationwas proposed.Theresearchfindingsevealthefollowing： Thecentralosetiosteosleablesctiowiteigststaiouingatesctiotoreciufeetialsile strainispredoantTestsoothsisoftestiareeallticalomatedbumfertialompresieaine sectionbotoexpestasttpaeofpakstaiatmeasretptscosallpiectoisistet thepeatradeasapidlyihiceasigvericaldstaefroteipactpnt，iletsateuantendaogthzotalin ofthepipelieiselativelysower.Fomeasurementpoitsabovethepielie，epeakstranducedbyteimpactsosatrogfuctioal corelatinwisapcttSallucoaloeaedalakndaisaker than that between circumferential peak strain and distance.

Keywords： faling rock impact; cast iron pipelines; field experiments;strain analysis; vibration response

铸铁管道具有机械性能出色、制造成本低、防腐性能优异、安装简易等诸多优点，被市政工矿输水、输气等广泛使用[1-3]。（剩余12367字）