单柱组合耐张塔在1000kV特高压交流线路中的拓展应用  

Extended Application of Single-Pole-Combined Strain Tower in 1 000 kV UHVAC Power Transmission Lines

作　　者：李显鑫[1] 

机构地区：[1]国网北京经济技术研究院,北京市100052

出　　处：《电力建设》2013年第12期53-57,共5页Electric Power Construction

基　　金：国家电网公司科技项目(输电线路新技术;新材料;新工艺应用的若干关键技术研究)

摘　　要：结合单柱组合耐张塔各单塔相互独立、可自由组合、杆塔单件质量较小的特点,分析了该种塔在终端和分歧方面的应用前景,以及在不同地形条件下的优势。对伞型耐张塔和单柱组合耐张塔,分别从简化设计及技术指标等方面进行分析,结果表明单柱组合耐张塔具有更加灵活、经济的特点,可以拓展应用到变电站出线终端塔和分歧塔;从铁塔最大构件的长度、质量和基础配置等方面分析,结果表明单柱组合耐张塔能够有效解决山地条件下的施工、运输困难,在河网泥沼等软弱地基可以使用大开挖基础以降低基础施工难度。Combined with the characteristics of single-pole-combined strain tower： mutual independence in each single tower, free combination and small weight of single component, this paper analyzes the application prospect of the strain tower in terminal tower and bifurcation tower, as well as its relative advantages under different terrain conditions. A comparative analysis was conducted between the umbrella-type strain tower and the single-pole-combined strain tower in terms of simplified design and technical indices, which indicates that the single-pole-combined strain tower is more flexible and economic, and can be further applied in the outlet terminal towers and bifurcation towers in substations. An analysis of the length, weight of the largest tower component and the foundation type design concludes that the application of the single-pole-combined strain tower can effectively solve the construction and transportation problems in mountainous areas and reduces the foundation construction difficulties by using the open excavation foundation in soft ground such as river slough areas.

关 键 词：单柱组合耐张塔 伞形耐张塔 1 000 KV特高压 输电线路 地形 

分 类 号：TM753[电气工程—电力系统及自动化]