城市轨道交通大坡度出入口安全技术研究  

Research on Safety Technologies for Large-Gradient Entrances and Exits of Urban Rail Transit

作　　者：朱世举 Zhu Shiju(CCCC-SHB Fourth Engineering Co.,Ltd.,Luoyang,Henan 471013)

机构地区：[1]中交二公局第四工程有限公司,河南洛阳471013

出　　处：《现代工程科技》2025年第4期161-164,共4页Modern Engineering Technology

摘　　要：针对城市轨道交通大坡度出入口施工中的安全技术问题展开研究,以由上往下开挖、坡度30°、采用数码电子雷管精细爆破和两台阶法开挖为工程背景,深入探讨了工艺技术、施工难点、变形控制、施工工效、风险评估以及安全保障措施等关键问题。研究表明,通过合理的施工组织、先进的爆破技术、有效的变形控制措施及全面的安全管理体系,能有效提高大坡度出入口施工的效率和安全性。This paper conducts research on the safety technology issues in the construction of large-gradient entrances and exits of urban rail transit.Taking the project background of top-down excavation,a slope of 30°,the use of digital electronic detonators for fine blasting and two-bench method excavation,this paper deeply explores key issues such as process technology,construction difficulties,deformation control,construction efficiency,risk assessment,and safety guarantee measures.The research shows that through reasonable construction organization,advanced blasting technology,effective deformation control measures,and a comprehensive safety management system,the efficiency and safety of the construction of large-gradient entrances and exits can be effectively improved.

关 键 词：城市轨道交通 大坡度出入口 数码电子雷管 两台阶法 安全技术管理 

分 类 号：TU714[建筑科学—建筑技术科学]