摘要
为了研究地震作用对地铁区间隧道的影响,文章以厦门市轨道交通6号线角美延伸段地铁区间隧道为研究对象,采用反应位移法计算出土层相对位移、管片惯性力与周围剪力,并使用地基弹簧来考虑土层与管片的相互作用,运用Midas-GTS软件对地铁区间隧道进行抗震分析。结果表明:区间隧道最不利受力位置为管片的拱顶与拱腰,而且管片剪力受地震作用影响比较大;计算截面的配筋由裂缝宽度控制,抗震配筋不起主要控制作用。
In order to study the influence of earthquake action on the subway interval tunnel,this paper takes the subway interval tunnel of Jiao Mei extension section of Xiamen rail transit six line as the research object,the relative displacement of the soil layer,the inertia force and the shear force of the tube are calculated by the response displacement method,the foundation spring is used to consider the interaction between soil layer and tube,using Midas-GTS software calculate Seismic analysis of the subway interval tunnel.The results show that the most unfavorable position of the interval tunnel is the vault and the arch waist of the tube,and the shear force of the tube is greatly influenced by the earthquake action; the reinforcement of the calculation section is controlled by the width of the crack,and the seismic reinforcement can not play the main controlling role.
作者
陈俊
CHEN Jun(Fujian traffic layout design institute,Fuzhou 35000)
出处
《福建建筑》
2018年第9期85-88,共4页
Fujian Architecture & Construction
关键词
区间隧道
反应位移法
Midas-GTS软件
抗震
Interval tunnel
Reaction displacement method
Midas - GTS software
Anti - seismic
