Designation:A807/A807M−17StandardPracticeforInstallingCorrugatedSteelStructuralPlatePipeforSewersandOtherApplications1ThisstandardisissuedunderthefixeddesignationA807/A807M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeprimarilycoversprocedures,soils,andsoilplacementfortheproperinstallationofcorrugatedsteelstruc-turalplatepipe,pipe-arches,arches,andunderpassesproducedtoSpecificationA761/A761M,ineithertrenchorembankmentinstallations.Thispracticealsocoversinstallationofstructuralplateforalternativeusesthatdonotinvolvebackfillingorsoil-structureinteraction.1.2Atypicaltrenchinstallationandatypicalembankment(projection)installationareshowninFigs.1and2,respec-tively.Structuralplatestructuresasdescribedhereinarethosestructuresfactoryfabricatedinplateformandboltedtogetheronsitetoprovidetherequiredshape,size,andlengthofstructure.Thispracticeappliestostructuresdesignedinaccor-dancewithPracticeA796/A796M.1.3Thevaluesstatedineitherinch-poundunitsorSIunitsshallberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother,withoutcombiningvaluesinanyway.SIunitsareshowninbracketsinthetextforclarity,buttheyaretheapplicablevalueswhentheinstallationistobeperformedusingSIunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnical...