京石客运专线悬臂浇筑连续箱梁施工技术

The construction technology of super-depth manual hole digging pile

以北京至石家庄客运专线大清河特大桥为例,介绍了大清河特大桥连续箱梁悬臂施工技术,分别对挂篮施工、合拢段施工、边跨现浇段施工、合拢段施工及体系转换以及悬臂施工中线形控制和体系转换等方面进行了深入的探讨。工程实例表明:悬臂浇筑连续箱梁施工方案合理,保证了施工质量,可供同类工程借鉴和参考。

Passenger line from Beijing to Shijiazhuang,the Great River Bridge,for example,describes the Great River Bridge continuous box girder cantilever construction technique was the construction of the hanging basket,close up section of the construction,side cross-section of cast construction,and system of the Closure Segment Construction Conversion and cantilever construction in linear control and system transformation in areas such as in-depth discussion.Projects that： continuous box girder construction program Cantilever reasonable to ensure the construction quality,useful reference for similar projects.