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PerformingSuccessfulLargeDiameterPipeInspectionsUnder
VariableFlowConditions
ElizaMorrison,EIT|Wright-Pierce
Presentedatthe2018NEWEAAnnualConference
Slide2
1. Whoworkswithdifficulttoaccesspipes?2. Dothesepipeshavevariableflowcondi7ons?3. Aretheselargediameterpipes?4. Havethesepipesbeeninspectedinthepastdecade?
4QuickQuestions
Loca7on-Project
Slide3
1. Whoworkswithdifficulttoaccesspipes?2. Dothesepipeshavevariableflowcondi<ons?3. Aretheselargediameterpipes?4. Havethesepipesbeeninspectedinthepastdecade?
4QuickQuestions
Loca7on-Project
Slide4
1. Whoworkswithdifficulttoaccesspipes?2. Dothesepipeshavevariableflowcondi7ons?3. Aretheselargediameterpipes?4. Havethesepipesbeeninspectedinthepastdecade?
4QuickQuestions
Loca7on-Project
Slide5
1. Whoworkswithdifficulttoaccesspipes?2. Dothesepipeshavevariableflowcondi7ons?3. Aretheselargediameterpipes?4. Havethesepipesbeeninspectedinthepastdecade?
4QuickQuestions
Loca7on-Project
Slide6
• ProjectSummary• Inspec7onChallenges• VariableFlowCondi7ons• DifficultAccess
• Closing
PresentationOverview
Slide7
• ProjectSummary• Inspec7onChallenges• VariableFlowCondi7ons• DifficultAccess
• Closing
PresentationOverview
ProjectGoals• Producebenchmarksneededtoassessrisk• Priori)zerehabilita7onneedsbasedoninspec7onresults• Provideconsistencyo Na7onalAssocia7onofSewerServicesCompanies(NASSCO)
ProjectSummary
Loca7on-Project Slide8
Slide9
ProjectDescrip<on• Upto108-inchpipediameter• 40years+• 2PACPcer7fiedcontractorso PipelineAssessmentCer7fica7onProgram
• Inspec7onsperformedusing:o ClosedCircuitTelevision(CCTV)o Sonar
ProjectSummary
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• ProjectSummary• Inspec<onChallenges• VariableFlowCondi<ons• DifficultAccess
• Closing
PresentationOverview
Slide11
VariedFlowCondi<ons• CCTVInspec7onso TR-7000TitanStormCrawlero AriesFloatAssembly
• SonarInspec7onso HDProfiler
InspectionChallengesVariedFlowConditions
InspectionChallengesVariedFlowConditions
TR-7000TitanStormCrawler• Navigates18to200-indiameterpipe• 4-Wheelchaindriven• Usedforlowflowinspec7ons• Interchangeablewheels• Climbovermostobstacles
Slide12
AriesFloatAssembly• Navigatespipe36-indiameterandlarger• Floatoperatesinvaryingflowrateso Dependentonlinesize/configura7on
• Greatforfloa7ngaboveobstacles• Floatedorpulled• Guidewire
Slide13
InspectionChallengesVariedFlowConditions
HDProfiler• UsedforSonarcapabili7es• Floa7ngplaaorm• Navigates20to84-indiameter• Reachesupto10,000l.f.• Priorcleaningnotneededtoinspect• Worksinfully-submergedpipes• Capableofprovidingdataon:
o Sedimentloca7ono Sedimentvolume
Slide14
InspectionChallengesVariedFlowConditions
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InspectionChallengesVariedFlowConditions
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DifficultAccess• AlongBanksofMajorRiver• BusyRoads
InspectionChallengesDifFicultAccess
InspectionChallengesDifFicultAccess
Slide17
InspectionChallengesDifFicultAccess
Slide18
InspectionChallengesDifFicultAccess
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InspectionChallengesDifFicultAccess
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Slide21
InspectionChallengesDifFicultAccess
InspectionChallengesDifFicultAccess
AlongBanksofMajorRiver• KubotaRTVOff-RoadInspec7onUnito Capableofnaviga7ngroughterraino CompleteonboardportableAREIS
SaturnIIIinspec7onsystem
Slide22
InspectionChallengesDifFicultAccess
BusyRoads• AccessWalko Laneclosureo Trafficcontrolo Sizeofequipment
Slide23
Slide24
Acknowledgements
ThankYou
PerformingSuccessfulLargeDiameterPipeInspections
UnderVariableFlowConditions
Presentedatthe2018NEWEAAnnualConference
