泄洪系统深大渐变断面竖井二次衬砌施工技术  

DISCUSSION ON CONSTRUCTION TECHNOLOGY OF VERTICAL SHAFT LINING FOR DEEP AND LARGE GRADIENT SECTIONS IN FLOOD DISCHARGE SYSTEMS

作　　者：吕秋影 Lyu Qiu-ying

机构地区：[1]中铁建大桥工程局集团第五工程有限公司,成都610500

出　　处：《建筑技术开发》2024年第5期43-45,共3页Building Technology Development

摘　　要：水电站泄洪系统旋流竖井为结构复杂的渐变段面竖井结构。我国外渐变段面竖井多采用常规的钢平台+定型钢模板+脚手架施工,安全风险大、施工成本高,若采用相对先进的滑模施工又面临滑模模板、主要支撑结构及大直径渐变竖井结构变化等难题。故针对传统施工方法和滑模施工进行了阐述和对比,分析了在当前施工环境下的优劣,提出了有关滑模技术的发展与展望。The spillway system's helical shaft in the hydroelectric station is a structurally complex transitional section shaft.Domestically and internationally,transitional section shafts often utilize conventional construction methods that include steel platforms,fixed steel formworks,and scaffolding,which present prominent safety risks and high construction costs.The application of the relatively advanced slipform construction method faces challenges like the design of slipform templates,the main supporting structures,and the structural changes in largediameter transitional shafts.The study elucidates and compares the traditional construction methods with slipform construction,analyzing the advantages and disadvantages in the current construction environment and proposing prospects for the further development of slipform technology.

关 键 词：渐变段面 竖井 滑模 

分 类 号：TU63[建筑科学—建筑技术科学]