As a key technology in the construction process,the construction technology of large span tower and overhead transmission lines has problems such as long span and high construction difficulty.In order to ensure the safe,efficient,and orderly implementation of the construction of large-scale transmission line crossing projects,this article conducts re-search on key technologies for tower assembly and overhead line construction of super large transmission lines.Firstly,a multi support scheme of"crawler crane+fully floor mounted double arm suspension pole"was proposed for the actual working conditions of the super large crossing project.Based on this scheme,research was conducted on the attachment of large tower assembly suspension poles and the special platform for tower assembly in the river;Secondly,the stability of pole attachment under different tower grouping schemes was compared and analyzed through theoretical calculations,and the attachment spacing of poles was optimized;Finally,the rationality of the Jiangzhong Tower Assembly Special Plat-form was analyzed using finite element method.Considering the adverse loads during platform construction and use,a fixed drilling platform scheme with steel casing as the main component and steel pipe piles as the auxiliary was deter-mined.
关键词
特大型大跨越/组塔/架线/施工方案/输电线路
Key words
super large transmission line span/assembly tower/sringing/construction scheme/transmission line
维普
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