繁忙干线下既有连续箱涵保护性拆除技术——以临沭路下穿铁路立交工程为例  

Protective Demolition Technology of Existing Continuous Box Culverts under Busy Trunk Lines ——Taking Linshu Road Underpass Railway Interchange Project as an Example

作　　者：王广群 丁小虎 谢宝 Wang Guangqun;Ding Xiaohu;Xie Bao(China Railway 24th Bureau Group Shanghai Railway Co.,Ltd.,Shanghai 200000)

机构地区：[1]中铁二十四局集团上海铁建工程有限公司,上海200000

出　　处：《工程技术研究》2022年第6期76-80,共5页Engineering and Technological Research

摘　　要：文章主要研究多股道繁忙干线铁路下既有连续箱涵的保护性拆除技术,通过方案比选确定主要使用金刚石绳锯切割技术进行既有箱涵保护性拆除,并结合原有箱涵的连续性结构特点,确定方案实施顺序和步骤,寻求在有限时间内完成既定切割任务。同时,引入第三方实时监测切割过程对铁路稳定性的影响。文章研究可为类似工程提供经验参考。This paper mainly studies the protective demolition technology of the existing continuous box culverts under the busy trunk railway with multiple tracks.Through the comparison and selection of schemes,it is determined that the diamond wire saw cutting technology is mainly used for the protective demolition of the existing box culverts.Combined with the continuous structural characteristics of the original box culverts,the implementation sequence and steps of the scheme are determined to seek to complete the established cutting task in a limited time.At the same time,the third party is introduced to real-time monitor the influence of cutting process on railway stability.The research in this paper can provide experience references for similar projects.

关 键 词：既有连续箱涵 拆除技术 金刚石绳锯切割 

分 类 号：U449.5[建筑科学—桥梁与隧道工程]