黄河桥梁桩基顶推钢套筒加固施工及控制技术  

Pile Foundation Reinforcement of Bridge Across Yellow River with Steel Sleeve Jacking and Control Technology

作　　者：于利存[1] 姚晓飞[1] 周江[1] 

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《筑路机械与施工机械化》2016年第12期93-96,共4页Road Machinery & Construction Mechanization

基　　金：陕西省科学技术研究发展计划项目(2013K09-05)

摘　　要：水流冲刷常导致桥梁桩基耐久性、承载力降低,使结构安全性不足。文章依托某公路大桥主桥桩基加固工程,通过总结分析顶推钢套筒主动加固桩基法的技术方案、加固构造、施工工艺、施工监控以及应用效果,发现该项技术能有效降低黄河水流冲刷的危害,且对土层桩侧摩阻力较小的桥梁群桩基础加固具有良好的适用性,可为类似桩基加固工程提供参考和借鉴。Given that water scouring often leads to the reduction of durability and bearing capacity of bridge pile and compromises structural safety, the pile foundation reinforcement project of a bridge across the Yellow River was taken to study the technical solutions, reinforcement structure, construction technology, monitoring of the construction process and application effect of steel sleeve jacking, an active reinforcement method for pile foundation. It is found out that this method effectively reduces the damage to the bridge by the current of Yellow River, and is suitable for pile cluster with less friction resistance from soil.

关 键 词：冲刷 桩基加固 钢套筒 顶推施工 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]