摘要
武汉市地铁某区间下穿城际高速铁路桥梁,为保证盾构下穿期间的既有铁路运营安全,从优化区间线路、加强管片设计、隔离保护设置、列车限速、地面注浆、盾构施工控制等方面,提出处理方案和保护措施。采用FLAC3D有限差分分析软件,建立三维数值模型,分析结果表明,盾构隧道施工引起城际高速铁路桥梁变形满足要求。
A subway line in Wuhan city passes through under an intercity high-speed railway bridge. To guarantee the safety of existing railway operation during shield construction, relevant treatment schemes and protection measures were proposed on the aspects of interval line optimization, strengthening tunnel segment design, setting of isolation protection, speed limitation, ground grouting and shield construction control, etc.;Finite-difference analysis software FLAC3D was used to create a threedimensional numerical model. The analysis result showed that the intercity high-speed railway bridge deformation caused by shield tunnel construction is acceptable.
作者
王洪涛
熊朝晖
吴贤国
WANG Hong-tao;XIONG Zhao-hui;WU Xian-guo(China Construction Third Engineering Bureau Infrastructure Engineering Co., Ltd., 430065, Wuhan, China;China Railway No.4 Surveyand Design Institute Group Co., Ltd., 430063, Wuhan, China;School of Civil Engineering and Mechanics, Huazhong University of Scienceand Technology, 430074, Wuhan, China)
出处
《建筑技术》
2019年第5期524-526,共3页
Architecture Technology
关键词
盾构隧道
穿越铁路
仿真分析
shield tunnel
passing through under railway
simulation analysis
