摘要
以长沙地铁6号线白鸽咀站3号出入口侧墙开洞工程为研究对象,介绍其侧墙与围护桩的开洞设计方案,采用MIDAS GTS/NX软件建立有限元模型,模拟在各施工工况下侧墙的变形及内部应力变化情况,并采用三维有限元软件计算验证所提方案的可行性,结合监测数据分析开洞方式对地铁运营的影响。研究表明,数值模拟的侧墙水平位移极值、竖向位移极值均满足车站附属主体结构控制的要求,监测数据均在可控范围,验证了方案的可行性。
Taking the side wall opening project of Exit 3 of Baigezui Station on Changsha Metro Line 6 as the research object,this paper introduces the opening design scheme of the side wall and retaining piles.The finite element model is established by using MIDAS GTS/NX software to simulate the deformation of the side wall and the changes of internal stress under various construction conditions.The feasibility of the proposed scheme is verified by using three-dimensional finite element software for calculation,and the impact of the opening method on metro operation was analyzed in combination with monitoring data.Research shows that the extreme values of horizontal displacement and vertical displacement of side walls in numerical simulation both meet the control requirements of the main structure of ancillary facilities of the station,and the monitoring data are all within the controllable range,verifying the feasibility of the scheme.
作者
张洁
ZHANG Jie(Guangzhou Metro Design&Research Institute Co.Ltd.,Guangzhou 510000,China)
出处
《工程建设与设计》
2025年第16期77-79,共3页
Construction & Design for Engineering
关键词
既有地铁出入口
侧墙开洞
变形
MIDAS
GTS/NX
数值模拟
existing metro entrances and exits
hole-opening in side walls
deformation
MIDAS GTS/NX
numerical simulation
