焊管2026，Vol.49Issue(3)：32-36,5.DOI:10.19291/j.cnki.1001-3938.2026.03.005
采空沉陷区埋地管道的力学特性与变形规律研究
Study on Mechanical Behavior and Deformation Patterns of Buried Pipelines in Goaf Collapse
摘要
Abstract
To address the safety risks to buried pipelines posed by subsidence due to goaf collapse,this study developed a three-dimensional finite element model in ABAQUS using actual geological parameters.The mechanical responses of pipelines under longitudinal and transverse mining were compared.The results show that,under longitudinal mining,as the angle between the mining direction and the horizontal plane of the pipeline decreases,both the equivalent stress and the vertical displacement of the pipeline increase,reaching their maxima at the pipeline center.Although the final stress and deformation states resulting from longitudinal and transverse mining are generally consistent,transverse mining induces significantly more rapid variations in both stress and deformation response.These findings provide a theoretical basis for the safety assessment and protection design of pipelines in goaf areas.关键词
采空沉陷/埋地管道/煤层开采/有限元分析Key words
goaf collapse/buried pipelines/coal seam mining/finite element analysis分类
能源科技引用本文复制引用
张海伦..采空沉陷区埋地管道的力学特性与变形规律研究[J].焊管,2026,49(3):32-36,5.基金项目
国家自然科学基金项目"基于断裂过程正演与反演的高钢级输气管道止裂预测模型研究"(项目编号12272412) （项目编号12272412）
国家自然科学基金项目"超临界CO2管道流固耦合力学行为与止裂控制模型研究"(项目编号12202502) （项目编号12202502）
山东省自然科学基金"基于热-流-固耦合的超临界CO2管道断裂机理及裂纹扩展速度预测模型研究"(项目编号ZR2022QE039). （项目编号ZR2022QE039）
