邻近营业线深路堑爆破开挖施工技术探析  

Discussion and Analysis on Construction Technology for Deep Cutting Blasting and Excavation of Adjacent Business Line

作　　者：牛铭杰 Niu Mingjie(China Railway 20th Bureau Group 2nd Engineering Co.,Ltd.,Beijing 100142,China)

机构地区：[1]中铁二十局集团第二工程有限公司,北京市100142

出　　处：《北方交通》2024年第6期51-54,58,共5页Northern Communications

摘　　要：长期以来,邻近既有铁路石方路堑爆破开挖施工安全风险高,施工技术难度大,是施工组织的重难点。文章以黄蒲高速K40+399.793~K40+770.783段路基工程邻近营业线控制爆破开挖技术为研究对象,严格控制施工过程中的爆破及安全防护措施,并对既有铁路隧道进行监控,确保爆破区附近铁路、设备和人员安全。该段路基爆破及防护方案实施简便,可为后续同类工程施工提供借鉴。For a long time,the safety risk of blasting and excavation construction of stone cutting near the existing railway is high,and the construction technology is difficult,which is the major important and difficult points of construction organization.Taking the controlled blasting and excavation technology for the adjacent business line of the subgrade project of the K40+399.793~K40+770.783 section of Huangpu expressway as the research object,the blasting and safety protection measures in the construction process are strictly controlled,and the existing railway tunnel is monitored,so as to ensure the safety of the railway,equipment and personnel near the blasting area.The implementation of the subgrade blasting and protection scheme in this section is simple,which can provide reference for subsequent similar construction.

关 键 词：邻近营业线 石方路堑 控制爆破 安全防护 

分 类 号：U416.1[交通运输工程—道路与铁道工程]