月刊
ISSN 1000-7229
CN 11-2583/TM
电力建设 ›› 2013, Vol. 34 ›› Issue (4): 102-106.
• 施工技术 • 上一篇 下一篇
陆国智,李从刚
出版日期:
作者简介:
LU Guozhi, LI Conggang
Online:
摘要:
四分裂跳线常用在500 kV输电线路工程。随着输电线路走廊的日益紧张,线路走向需要绕开居民区及建筑物,导致线路设计中耐张转角塔增多,跳线安装施工量增大。目前跳线安装大多采用塔上比量法施工,效率低,高空作业量大。跳线装配式安装施工技术,采用精确计算跳线线长,在材料站完成跳线压接,做好标记,运至现场悬挂安装。经过多个工程实践表明,跳线装配式安装施工技术可极大提高施工效率,减少高空作业,且确保工艺美观。
关键词: 耐张转角塔, 四分裂跳线, 装配式安装, 施工技术, 注意事项
Abstract:
The quad -bundle jumpers are commonly used in 500 kV power transmission lines. With the increasing restriction of transmission line corridors, transmission lines need to steer clear of the residential areas and buildings, which may result in the increase of tension angle towers in the lines’ design as well as the increase of loads in jumper installation and construction. At present, the on-tower capacity relation method is widely applied in the jumper installation, which has low efficiency and huge aerial operation workload. With several project practices, it shows that with the length accurately calculated in design process, the jumper is pressed and marked in material station, and transported to the site for suspension installation, which can greatly improve the efficiency of construction, reduce the aerial workload, as well as ensure the esthetics of process.
Key words: tension angle tower, quad-bundle jumper, prefabricated installation, construction technique, points for attention
陆国智,李从刚. 四分裂跳线装配式安装施工技术[J]. 电力建设, 2013, 34(4): 102-106.
LU Guozhi, LI Conggang. Prefabricated Installation Techniques for Quad-Bundle Jumpers[J]. ELECTRIC POWER CONSTRUCTION, 2013, 34(4): 102-106.
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