Design Of Oil And Gas Pipeline Landslide Disaster Monitoring System Based On Fiber Grating Sensing Technology

With the booming development of the oil and gas pipeline industry in China,more and more oil and gas pipelines have to pass through the geological disaster area.Landslide disasters,as the main disasters of geological disasters,pose a great threat to oil and gas pipelines.This paper mainly focuses on oil and gas pipeline landslide disasters,and designs a monitoring scheme for oil and gas pipeline landslides based on fiber grating sensing technology.This article first systematically describes the mechanism and characteristics of landslide formation,and classifies landslide hazards,adds hazards to oil and gas pipelines,and introduces them.Then,the fiber grating sensing technology is elaborated in detail,the basic principle of fiber grating monitoring is analyzed,and the fiber grating strain sensing model and its temperature compensation technology are studied.Secondly,based on the criteria of strain failure criteria,the ABAQUS finite element software was used to analyze the strain of oil and gas pipelines under the effect of landslides.Based on this,the main monitoring points of strains of oil and gas pipelines were selected,and then the landslides were carefully designed.Table displacement monitoring model and landslide deep displacement monitoring model.Then,an early warning method was proposed for oil and gas pipeline landslide disasters,and the development stages of the landslide disaster movement were analyzed.Based on this,a recognition method for the development stage of landslide was concluded,combined with the risk tolerance of oil and gas pipelines,and a combination of the two established an early warning matrix.The disaster early warning scale has established an early warning system for landslide hazards in oil and gas pipelines.Finally,based on the above monitoring content,the entire monitoring program was systematically described,the actual monitoring targets were determined,a landslide disaster monitoring platform for oil and gas pipelines was designed,and the effectiveness of the platform was verified through the existing field data.