斜拉加固技术在栈桥抢险工程中的应用  

Application of cable-stayed reinforcement technology in trestle emergency rescue project

作　　者：刘同兴 刘峥 LIU Tong-xing;LIU Zheng(CCCC First Harbor Engineering Co.,Ltd.,Tianjin 300461,China;Tianjin Deep Foundation Engineering Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中交第一航务工程局有限公司,天津300461 [2]天津深基工程有限公司,天津300222

出　　处：《中国港湾建设》2024年第6期97-102,共6页China Harbour Engineering

摘　　要：斜拉加固技术研究基于盐城港大丰港区栈桥抢险加固工程,原有栈桥桩基被船舶撞击后出现断裂,导致上部横梁失稳,出现不同程度开裂及梁端沉降现象,严重影响上部设备安全。该项目处于外海无掩护开敞海域,栈桥横梁除后方引桥以外无任何可支撑依靠构件,在不拆除原有横梁及空心板条件下,采用一种斜拉加固技术,对栈桥横梁进行加固,从而快速解除现有危险状态,为后期桩基及横梁修复提供施工平台,有助于降低施工成本、加快施工进度和提高施工安全系数,可为类似工程施工提供参考。The research on cable-stayed reinforcement technology is based on the rescue and reinforcement project of the trestle in the Dafeng Port area of Yancheng Port,the pile foundation of the original trestle was fractured after being collided by ships,resulting in the instability of the upper beam,varying degrees of cracking and beam end settlement,which seriously affects the safety of the equipment on the beam.The project is located in an open sea area without cover,and the beam of the pier has no supporting components except for the rear approach bridge.A cable-stayed reinforcement technology was used to reinforce the beam of the trestle without dismantling the original beam and hollow slab,thereby quickly relieving the existing dangerous state and providing a construction platform for the later repair of pile foundations and beams.The application of this technology helps to reduce construction costs,accelerate construction progress,and improve construction safety factor,providing reference for similar engineering construction.

关 键 词：抢险 横梁 斜拉加固 

分 类 号：U655.4[交通运输工程—港口、海岸及近海工程] U447[交通运输工程—船舶与海洋工程]