优化钻孔灌注桩基础的实例分析  

Case Analysis of Optimization Bored Pile Foundation

作　　者：朱磊 ZHU Lei(China Railway 24th Bureau Group Anhui Engineering Co.,Ltd.,Hefei 230000)

机构地区：[1]中铁二十四局集团安徽工程有限公司,合肥230000

出　　处：《中国厨卫》2024年第2期55-58,共4页Chinese Kitchen & Bathroom

摘　　要：文章介绍了商合杭铁路工程杨家湾特大桥19#~22#墩的地质情况和原基础方案,通过采用动力触探试验获得更精确的地质参数,同时采用FLAC 3D软件模拟分析了明挖基础与桩基础受力与沉降差异,并结合实际例进行验证了优化基础形式的可行性。研究结果表明:在满足设计要求前提下,将桩基础优化为明挖基础,能降低施工难度,加快施工速度,降低工程造价,获得良好的经济效益,为今后类似的桥梁工程施工提供参考依据。This article introduces the geological conditions and original foundation scheme of Piers 19#~22#of Yangjiawan Extra Large Bridge in the Shanghe Hangzhou Railway Project.More accurate geological parameters were obtained through dynamic penetration testing,and the differences in stress and settlement between open cut foundation and pile foundation were simulated and analyzed using FLAC 3D software.The feasibility of optimizing the foundation form was verified through practical examples.The research results indicate that,under the premise of meeting the design requirements,optimizing the pile foundation into an open cut foundation can reduce construction difficulty,accelerate construction speed,reduce project costs,and achieve good economic benefits,providing reference basis for similar bridge construction in the future.

关 键 词：钻孔灌注桩 基础优化 明挖基础 

分 类 号：TU741[建筑科学—建筑技术科学]