拆除基坑内支撑结构时汽车坡道处的支顶技术  

Jacking Technology of Car Ramp During Support Structure Removal in Foundation Pit

作　　者：胡勇[1] HU Yong(Cliina Railway Construction Corporation Limited,Beijing 100855,China)

机构地区：[1]中国铁建股份有限公司,北京100855

出　　处：《铁道建筑技术》2020年第8期52-54,124,共4页Railway Construction Technology

摘　　要：结合某工程拆除内支撑结构时,在汽车坡道处采用的钢管临时回顶措施,将外墙与汽车坡道内墙连成一个整体,起到临时加固与换撑的作用。此种钢管支顶技术达到了提高施工效率,降低工程成本的良好效果。Aimed at a foundation pit support structure demolition project,temporary steel pipe jacking measures are adopted at the car ramp to connect the external wall and the inner wall of the car ramp as a whole,which plays the role of temporary reinforcement and support replacement.This kind of steel pipe jacking technology improves the construction efficiency and reduces the project cost.

关 键 词：基坑内支撑 机械拆除 汽车坡道 支顶技术 

分 类 号：TU753[建筑科学—建筑技术科学]