Pipelaying Tender-VOL II - WorleyParsons.com

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PageEPMC SERVICES FOR REWARI – KANPUR PIPELINE PROJECTBASIS OF DESIGN (PIPELINE)Design Ambient Soil TemperatureDescription Minimum MaximumAverage 1 year Soil Temperature 22.5 o C 45 o C5.8.4 Ambient InfluencesThermal relief valves shall be provided for above ground pipeline sections subject to increasedpressure caused by the heating of static fluid from changes in ambient conditions (including solarradiation effects).The buried pipeline sections between SV’s shall be designed to withstand increased pressure causedby the heating of static fluid from changes in soil temperatures.5.8.5 Dynamic EffectsImpactNo specific impact assessment will be performed.WindAll relevant structures and above-ground piping along the Pipeline will be designed to withstand thewind forces that can be expected, including cyclone loading where appropriate, in accordance withIndian Standard IS 875 (Part 3) Code of practice for Design Loads for building and structures Part 03Wind Loads, and will <strong>com</strong>ply with requirements set by local authorities.The Terrain Category for all sites is to be taken as (Category 2 [HOLD]), with no shielding.EarthquakeAll Seismic Zone factors / design loads shall be as per IS:1893 (Part 1 2002) Indian StandardsCriteria for Earthquake Resistant Design of Structures: Part 1 General Provisions and Buildings".Seismic fault lines are identified in Design Feasibility report (DFR). Rewari to Kanpur Pipeline crossseven seismic fault locations including: n:\513-mh-2145-rkpl\11 engineering\11.8 pipelines\02 bod\working\mh2145-c000-pl-bod-0001_rev 0 .doc EV435-JH0902-00-GEN-BOD-0001 Rev 019 of 34
PageEPMC SERVICES FOR REWARI – KANPUR PIPELINE PROJECTBASIS OF DESIGN (PIPELINE) The axial and bending strains induced to the buried pipeline at these fault lines crossings due to thepermanent ground deformation are considered in the pipeline design.One km on either side of Seismic fault have been considered as next higher wall thick pipe in theabsence of seismic analysis.VibrationStress resulting from vibration or resonance will be considered in the above ground pipeline sections.SubsidenceNo areas of subsidence have been identified.5.8.6 Weight EffectsThe following weight effects <strong>com</strong>bined with loads and forces from other causes shall be taken intoaccount in the design of piping that is exposed, suspended, or not supported continuously. Buriedpipeline sections are considered to be continuously supported.Live LoadsLive loads shall include the weight of the liquid transported or the weight of water during hydrostatictesting and other criteria as given in ASME B31.4.Dead LoadsDead loads shall be considered as per criteria given in ASME B31.4.Transport LoadsExternal loads imposed by transport (road and rail) at crossings shall be determined in accordancewith API RP 1102.5.9 Wall Thickness and Material GradePipeline wall thickness is calculated in accordance with ASME B31.4.A design factor of 0.72 has been applied to the entire length of the pipeline(s).n:\513-mh-2145-rkpl\11 engineering\11.8 pipelines\02 bod\working\mh2145-c000-pl-bod-0001_rev 0 .doc EV435-JH0902-00-GEN-BOD-0001 Rev 020 of 34
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Pipelaying Tender-VOL II - WorleyParsons.com

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