ANALYSIS CONDITION OPTIMIZATION FOR MOVEMENT OF IN-SERVICE GAS PIPELINES AND DATABASE SYSTEM ESTABLISHMENT OF ITS ANALYSISR RESULTS
Running gas pipeline buried in the roads is required a action of supply-tongued or shifting due to environmental changes on the ground such as road linearation and expansion,raising the ground level and cutting the ground.However,Moving in-service pipelines can be a safe.cost-effective means of relocating a pipeline without loss of service without interrupting the supply of gas.This method is applicable to any lowering or other movement of existing pipelines that is undertaken either to accommodate new roads,railroads, foreign utilites,ditches,or creeks or to accommodate any condition for which moving the pipeline is the chosen altemative.And the relocating a pipeline is done using the weight of pipeline by the excavation of pipeline bottom part.After forecasting the pipeline displaced depth at each location and determining the excavation trench length to move to target displacement of pipeline.the location of the new pipeline should be evaluated for structural safety .Performing movement of in-service pipelines,start ing or ending points of excavated pipeline can be damaged with the rapid increase in local stress due to the existence of structural damage.So the structural safety analysis is especially essential.In this research.the best ways of modeling of movement of in-service pipelines is suggested.By applying this method.structural analysis database of straight pipeline is build.And a program that can search of the analysis results is developed.Without performing a structural analysis of pipeline.the database gives a brief analysis at the site.For the best ways of the structure analysis of the model.the evaluation of the partial modeling method is compared with analysis results using the full modeling method.
Joon Ho, KIM Sek Young, JEONG Seong Kyeong, HONG
Gas Facility Research Group,KOGAS Co.Ansan,Kyunggi-Do,Korea
国际会议
The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)
北京
英文
291-296
2010-09-27（万方平台首次上网日期，不代表论文的发表时间）