新型锁口钢管桩围堰在绵苍高速嘉陵江大桥施工中的运用  

Application of New Type Locking Steel Pipe Pile Cofferdam in the Construction of Jialing River Bridge on Mian-Cang Expressway

作　　者：蒋平 JIANG Ping(China Railway 23rd Bureau Group Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]中铁二十三局集团有限公司,成都610000

出　　处：《价值工程》2021年第27期101-103,共3页Value Engineering

摘　　要：嘉陵江大桥主跨水中墩承台施工具有大水深、水流冲击力大、地质复杂、浅覆层等难点,传统钢板桩、双壁钢围堰对本项目的适用性差。锁扣钢管桩围堰的使用不仅解决了上述难点,且加快了工期,降低了施工成本,取得良好的技术、经济效果。The construction of the pier caps in the water for the main span of the Jialing River Bridge has difficulties such as large water depth,high water impact force,complex geology,and shallow cladding.Traditional steel sheet piles and double-wall steel cofferdams are not suitable for this project.The use of the lock steel pipe pile cofferdam not only solves the above-mentioned difficulties,but also speeds up the construction period,reduces the construction cost,and achieves good technical and economic effects.

关 键 词：深水承台 地质复杂 浅覆盖层 锁扣钢管桩 施工关键技术 

分 类 号：U445.47[建筑科学—桥梁与隧道工程]