地下管线的接头系统及其更换技术.pptxVIP

REPLACEMENT POINT SYSTEM  Pipeline Replacement Assessment;Agenda;Background Information -Towngas Pipeline;Established in early 90’s Digital electronic maps Purchase from Hong Kong Lands Department Pipeline records Digitize pipeline paper records by data conversion Effective for gas facility management Strong support for the network day-to-day operation ;Under such challenging environment and with existing sophisticated GIS Q: Can Towngas have a system to... Enhance pipeline integrity to ensure public safety Evaluate potential threats effectively Calculate risk level on each underground pipe segment automatically Identify and locate high risk segments quickly Better replacement planning of ageing resources Eliminate tedious manual calculation Ans : Replacement Point System (RPS);Integration of Emergency Log System (ELS) Geographic Information System (GIS) Replacement Point System (RPS) By the facility id of each pipe segment as the common key;Risk Evaluation ApproachPoint Score;Protection Factor ;Material Type Factor Joint Type Factor ;Material Wall Thickness Stress Factor;Proximity distance Factor Create a 5-m buffer zone around the building to determine pipes fall into the zone;Age Factor;Ground Condition Factor Leakage Frequency Factor ;Leakage Type Factor;Pipe Cover Factor* At carriageway At footpath ;Score Calculation;System Features;System FunctionsAttribute review;Attribute filter Operating pressure Material Range of score Result table Allow export to CSV Map view update;Replacement Point System Usage; Thank You