高空工程大体积混凝土结构后锚固技术研究

Research on Post Anchorage Technology for Large Volume Concrete Structures in High Altitude Engineering

后锚固技术是一种广泛应用于改造及扩建工程中的重要技术,具有节能环保、经济适用等特点。水电工程因其大体积混凝土结构使改造工程大多处于高空环境而导致施工困难,重点针对水电改造及扩建工程中因高空施工环境复杂,限制因素多而导致的施工过程难度大、风险高,施工质量、进度及安全不可控的问题展开研究,并通过应用实例表明:其在高空作业下制造了安全施工全过程闭环,且对植筋技术进行改造,具有良好的推广应用价值。

Post anchoring technology is an important technology widely used in renovation and expansion projects,with characteristics such as energy conservation,environmental protection,and economic applicability.Due to its large volume concrete structure,most of the renovation projects in hydropower projects are located in high-altitude environments,resulting in construction difficulties.This paper focuses on the complex high-altitude construction environment and multiple limiting factors in hydropower renovation and expansion projects,which lead to difficulties and high risks in the construction process,as well as uncontrollable construction quality,progress,and safety.Practice has shown that it creates a closed-loop safety construction process in high-altitude operations,and transforms the planting reinforcement technology,which has good promotion and application value.