Response analysis of buried pipelines crossing fault due to overlying soil rupture-中国期刊网

摘要 A3-Dsoil-pipenonlinearfiniteelementmodelwithcontactelementissuggestedandtheinfluencesoftherupturemode,thicknessandrigidityofoverlyingsoilontheresponseofburiedpipelineareanalyzed.Thenumericalresultsshowthatthesoilrupturemodedeterminesthelocationofthelargedeformationorfailureofthepipeline,andtheplasticdeformationofthepipelineoccursatthezonewheretheplasticdeformationorruptureoftheoverlyingsoilappears.Whenthefaultdipangleonbedrockisnear90°,twoplasticdeformationsectionsofthepipelineappearwiththedevelopmentofoverlyingsoilrupture.Andthethickertheoverlyingsoilis,thelongertheplasticdeformationlengthofthepipelineisandthelessitsstrainis.Theplasticdeformationlengthofthepipelinedecreaseswhileitsmaximumstrainincreaseswiththerigidityofoverlyingsoilincreasing.

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Response analysis of buried pipelines crossing fault due to overlying soil rupture

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Response analysis of buried pipelines crossing fault due to overlying soil rupture

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