高速铁路特大桥主墩基坑支护方案与施工技术研究  

Research on the support scheme and construction technology of the main pier foundation pit of the high speed railway extra large bridge

作　　者：石林杰 SHI Linjie(China Railway 19th Bureau Group East China Engineering Co.,Ltd.,Ningbo 315400,Zhejiang,China)

机构地区：[1]中铁十九局集团华东工程有限公司,浙江宁波315400

出　　处：《资源信息与工程》2024年第5期87-90,共4页Resource Information and Engineering

摘　　要：本文以新建高速铁路特大桥主墩基坑支护施工为例,综合考虑基坑周边环境与水文地质条件,施工中采用了钢筋混凝土作为基坑围护主体、拉森钢板桩止水的基坑综合支护技术方案,并对支护结构进行了计算分析,保证了施工技术方案的安全性,同时有效地节约了施工成本。本研究可为同类桥梁工程基坑施工提供一定参考。This paper takes the construction of the main pier foundation pit support of a newly-built high-speed railway extra large bridge as an example.Taking into account the surrounding environment and hydrogeological conditions of the foundation pit,a comprehensive foundation pit support technology scheme was adopted,with reinforced concrete as the main body of the foundation pit support and Larson steel sheet piles for water sealing.The support structure was calculated and analyzed to ensure the safety of the construction technology scheme,while effectively saving construction costs.This study can provide some reference for the construction of foundation pits in similar bridge engineering.

关 键 词：深基坑 围护桩 拉森钢板桩 支护结构 

分 类 号：U445[建筑科学—桥梁与隧道工程]