下穿既有铁路的框架箱涵顶进施工关键技术及安全质量控制研究

Study on Key Technology and Quality Control of Jacking Construction of Frame Box Culvert Under Existing Railway

以杭州市萧山区钱江世纪城飞虹路下穿铁路立交工程为背景,从施工角度出发,分析总结了框架箱涵顶进施工技术。通过对工作坑支护、滑板施工、箱涵制作、箱涵顶进等施工要点的把控,结合施工安全、质量控制理论,制订科学、合理的防控措施,确保既有线铁路正常运营和框架箱涵顶进施工顺利完成。

Based on the background of Feihong Road Underpass railway interchange project in Qianjiang Century City,Xiaoshan District,Hangzhou,the jacking construction technology of frame box culvert is analyzed and summarized from the perspective of construction.By controlling the key construction points such as working pit support,sliding plate construction,box culvert fabrication and box culvert jacking.Formulate scientific and reasonable prevention and control measures in combination with construction safety and quality control theory.Ensure the normal operation of the existing railway and the successful completion of the jacking construction of frame box culvert.