桥梁冲刷水害整治方案研究  

Study on Regulation Scheme of Bridge Scouring Water Damage

作　　者：王胜军 杨红梅 WANG Sheng-jun;YANG Hong-mei

机构地区：[1]四川省公路规划勘察设计研究院有限公司,四川成都610041 [2]四川省西南大地集团有限公司,四川成都610032

出　　处：《内蒙古公路与运输》2023年第3期39-43,共5页Highways & Transportation in Inner Mongolia

摘　　要：文章分析了高速公路石亭江大桥的水害历史和历年加固措施,为找到安全、快速、高效的加固方法,提出了墩桩置换法、新建T型刚构法及上部T梁拆除重拼法等三种方案,并从投资规模、施工风险、工期、施工期间对原高速公路保通影响等方面进行了比选。结果表明:新建T型刚构法及上部T梁拆除重拼法施工风险较低,但投资规模较大,工期较长,施工期间对原高速公路保通影响大;采用墩桩置换法充分利用原有承台作为支撑平台,原上部结构整体维持不变,能充分节约投资,缩短工期,施工期间对原高速公路保通影响小。因此,采用墩桩置换法方案综合效益最好。This paper analyzes the history of water damage and the reinforcement measures over the years of Shiting-River expressway bridge,and puts forward three schemes,including the replacement method of pier pile,the new T-shaped rigid frame method and the demolition and reconstruction method of the upper T-beam.In order to find a safe,fast and efficient reinforcement method,comparisons are made in terms of investment scale,construction risk,construction period and the influence on the original expressway traffic during construction.The results show that although the construction risk of the new T-shaped rigid frame method and the demolition and reconstruction method of the upper T-beam is lower,the investment scale is larger and the construction period is longer,and has large influence on the original expressway during construction.The pier pile replacement method makes full use of the original cap as a support platform,and the original superstructure remains unchanged as a whole,which can fully save investment,shorten the construction period,and have litle influence on the original expressway during construction.Therefore,the pier pile replacement method has the best comprehensive benefit.

关 键 词：冲刷水害 墩桩置换 病害整治 桥梁加固 整治效果 

分 类 号：U448.13[建筑科学—桥梁与隧道工程]