电力勘测设计Issue(5)：25-29,49,6.DOI:10.13500/j.dlkcsj.issn1671-9913.2026.05.005
某110 kV架空输电铁塔在冻胀力影响下的受力性能分析
Study on Mechanical Performance of a 110 kV Overhead Transmission Tower under Frost Heave Force
摘要
Abstract
To solve the problems of abnormal stress and stability risks in the upper structure of 110 kV overhead transmission towers in permafrost regions caused by foundation frost heave,and to ensure the safe and stable operation of transmission lines,this paper carries out relevant research.Based on the mechanical properties of frost-heaved soil and the design specifications for overhead transmission tower structures,combined with engineering practice cases in seasonal frozen regions and permafrost regions,the method of combining theoretical calculation and numerical simulation is adopted to systematically analyze the influence law of vertical displacement caused by foundation frost heave on tower axial force and main material stability stress,and put forward targeted prevention and control suggestions.The research results show that in the elastic working stage of the structure,the axial force and compressive stability stress of the main materials of the tower increase linearly with the increase of frost heave displacement;the ultimate frost heave displacement of the tower is affected by the dual coupling of the initial stress ratio of the main materials and the overall stiffness of the tower.The research results can provide a reliable theoretical basis and technical support for the design optimization,construction control and operation and maintenance management of 110 kV overhead transmission towers in permafrost regions.关键词
铁塔受力特性/极限冻胀位移/冻胀力/冻土地区Key words
tower force characteristics/ultimate frost heave displacement/frost heave force/permafrost regions分类
信息技术与安全科学引用本文复制引用
郭立波,张斌,贺育明..某110 kV架空输电铁塔在冻胀力影响下的受力性能分析[J].电力勘测设计,2026,(5):25-29,49,6.基金项目
中国能源建设集团山西省电力勘测设计院有限公司科技项目"输电线路抗冰性能关键技术研究"(14-K2025-23-T05) （14-K2025-23-T05）
