型钢混凝土梁在盖挖逆作法地铁换乘车站中的应用研究  

Study on the Application of Steel Reinforced Concrete Beam in Transfer Metro Station by Cut-Cover Top-Down Method

作　　者：张纯华 ZHANG Chunhua(China Railway 14th Bureau Group,Tunnnel Engineering Co.,Ltd.,Ji'nan 250000,China)

机构地区：[1]中铁十四局集团隧道工程有限公司,山东济南250000

出　　处：《国防交通工程与技术》2024年第1期83-87,96,共6页Traffic Engineering and Technology for National Defence

摘　　要：为尽量减少对地面交通的干扰,换乘车站的换乘节点处常常采用对地层扰动次数较多的盖挖逆作法施工。为掌握换乘节点结构中型钢混凝土梁的作用,采用三维数值模拟方法对太原地铁下元站换乘节点结构中是否采用型钢混凝土梁进行分析,并将采用型钢混凝土梁的数值模拟结果和现场变形监测数据进行对比分析。结果表明:由于型钢混凝土梁的刚度大,车站施工引起地层的位移可以得到有效控制,下元站的换乘节点结构具有较大的安全储备。To minimize the disturbance to the ground traffic,the transfer node structure of the transfer station is often constructed by the cut-cover top-down method,which may produce ground disturbance many times.In order to grasp the effect of steel reinforced concrete beams in the transfer node structure of Xiayuan Station in Taiyuan Subway,the three-dimensional numerical simulation has been carried out to analyze whether steel reinforced concrete beams are used in the transfer node structure,and the numerical simulation results of steel reinforced concrete beams are compared with the field monitoring deformation data.The results show that the deformation caused by the station construction can be effectively controlled due to the large rigidity of the steel reinforced concrete beams,which has a large safety reserve for the transfer node structure of Xiayuan Station.

关 键 词：换乘车站 型钢混凝土梁 盖挖逆作法 数值模拟 

分 类 号：U231.4[交通运输工程—道路与铁道工程] U455.4[建筑科学—桥梁与隧道工程]