焊管2025，Vol.48Issue(6)：28-36,9.DOI:10.19291/j.cnki.1001-3938.2025.06.004
地质沉降影响下埋地管道力学响应研究
Study on Mechanical Responses of Buried Pipelines under Influence of Geological Subsidence
摘要
Abstract
Land Subsidence is one of the common geological hazards faced by buried pipelines,which can severely affect the safe operation of pipelines.To study the deformation and mechanical behavior of pipelines under land subsidence,the influences of settlement depth,formation elastic modulus,settlement zone length,settlement transition zone length and working internal pressure on the deformation and mechanical behavior of pipelines were investigated.The results show that an increase in settlement depth will increase the stress and strain of the pipeline.The elastic modulus of the formation is negatively correlated with the maximum stress of the pipeline and has a relatively small influence on the strain.The change in the length of the subsidence zone has no significant effect on the stress and strain values of the pipeline,but it will cause the stress and strain distribution of the pipeline to shift along the axial direction.The length of the subsidence transition zone has a significant impact on the both the subsidence and non-subsidence areas of the pipeline.Increasing the length of the subsidence transition zone can reduce the stress and strain.An increase in internal pressure can reduce the value at the maximum stress-strain point of the pipeline.关键词
沉降/管道/应力/应变/影响因素Key words
Subsidence/pipeline/stress/strain/influence factor分类
石油、天然气工程引用本文复制引用
曾泓锦,杨云,车兴宝..地质沉降影响下埋地管道力学响应研究[J].焊管,2025,48(6):28-36,9.基金项目
四川省重点研发计划"地震灾害下双金属复合管内衬易损性及安全评价技术研究"(项目编号2024YFFK0422). （项目编号2024YFFK0422）
