城区既有桥梁桩基拔除技术实践与探讨  

URBAN EXISTING BRIDGE PILE FOUNDATION ERADICATE TECHNOLOGY PRACTICE AND DISCUSSION

作　　者：李可喜 刘一流 Li Ke-xi;Liu Yi-liu

机构地区：[1]长沙市开福区公共工程建设中心,长沙410000 [2]湖南科技大学土木工程学院,湖南湘潭411200

出　　处：《建筑技术开发》2022年第11期124-126,共3页Building Technology Development

摘　　要：杭州机场快线盾构施工需穿越既有桥梁,对桥梁桩基进行拔除,因施工场地处于城市繁华区域,具有周边环境复杂、地质条件差、桥梁施工年代久远、环保要求高等特征,根据现场实际情况进行分析,采用全回转钢套管对既有桩基进行拔除,既能保证河床的稳定性,又缩短了工期,保护了河道环境,可为类似工程提供经验。Hangzhou Airport Express shield construction needs to cross the existing bridge,the bridge pile foundation needs to be removed,because the construction site is in a bustling area of the city,with the surrounding environment is complex,poor geological conditions,bridge construction age,high environmental protection requirements.According to the actual situation of the site,the use of full rotation steel casing for the existing pile foundation to be removed,both to ensure the stability of the riverbed,but also shorten the construction period,protect the river environment,can provide experience for similar projects.

关 键 词：既有桥梁桩基 拔除 全回转钻机 

分 类 号：U455.43[建筑科学—桥梁与隧道工程] U443.15[交通运输工程—道路与铁道工程]