摘要
高压直流输电的电压等级高、输送容量大、送电距离长、组塔损耗低。而承受输电线路荷载的铁塔基础由于不均匀沉降,造成基础根开出现改变,加之,塔材被外力破坏、铁塔螺栓紧固率低等因素的影响,铁塔结构发生了倾斜,威胁运行安全。及时合理的纠偏技术,对保证杆塔的施工质量具有一定现实意义。本文根据送电线路组塔内容,系统分析了送电线路铁塔基础,提出了送电线路铁塔基础不均匀沉降纠偏方案与技术。
HVDC transmission has high voltage level,large transmission capacity,long transmission distance,and low tower loss.However,due to uneven settlement of the tower foundation under the load of the transmission line,the foundation roots have changed.In addition,the tower material is damaged by external forces and the tower bolt tightening rate is low.The tower structure has tilted,threatening the safety of operation.Timely and reasonable correction technology has certain practical significance to ensure the construction quality of the pole and tower.According to the content of the transmission line tower,this paper systematically analyzes the transmission line tower foundation,and proposes the uneven settlement correction scheme and technology of the transmission line tower foundation.
作者
张刚
Zhang Gang(Gansu Transmission and Transformation Engineering Co.,Ltd.,Lanzhou Gansu,730050)
出处
《电子测试》
2020年第22期111-112,共2页
Electronic Test
关键词
输电线路
铁路基础
不均匀沉降
纠偏技术
transmission line
railway foundation
uneven settlement
deviation correction technology
