Stress analysis of natural gas pipeline under uneven foundation settlement
The collapsible loess has caused serious uneven foundation settlement after being soaked by water.Severe uneven settlement causes additional stress on the pipeline and produces a visible displacement deviation,which seriously affects the transportation safety of natural gas pipelines.The stress calculation and analysis are carried out for the complex laying structure of natural gas pipeline in Zhidan compressor station,combined with field monitoring data and numerical simulation analysis,this paper gives the stress and displacement of key points,verifies the rationality of the model,predicts and analyzes the stress state of the gas pipeline.Conclusions with great significance to engineering design and improvement are obtained,it provides a theoretical basis for the stress prediction and of natural gas pipelines.
Uneven foundation settlementNatural gas pipelineNumerical simulationStress analysis
NETL
NSTL
万方数据
维普
