摘要
由于传统围护结构设计往往不能满足主体结构布局较复杂的稳定性要求,需对地铁车站主体附属结构的基坑围护设计进行优化。因此,运用有限元软件对地铁车站主体附属结构基坑围护进行了有限元数值分析,利用有限元软件对人工挖孔桩加支承荷载的作用和释放循环进行了分析;采用国内外最先进的模拟梁法,对地铁车站主体附属结构基坑围护细部进行了改进,并通过逆作法施工,完成了地铁车站主体附属结构基坑围护的优化设计。该分析结果表明,优化后的围护设计可以实现地铁车站主体附属结构基坑围护的稳定。
It’s necessary to optimize the design of foundation pit enclosure of the main auxiliary structure of the subway station because the traditional enclosure structure design can't meet the stability requirements of complex layouts.The finite element software is adopted to numerical analyze the foundation pit enclosure and analyze the effect and release cycle of artificial digging piles and supporting loads.The details of the foundation pit enclosure are improved by the most advanced simulated beam method at home and abroad.Its'optimization design is completed by top-down construction method.The analysis shows that the optimized enclosure design can realize the stability of foundation pit enclosure of the main auxiliary structure of the subway station.
作者
聂鹏
Nie Peng(China Railway 18th Bureau Municipal Engineering Co.,Ltd.,Tianjin 300000,China)
出处
《市政技术》
2021年第5期69-71,共3页
Journal of Municipal Technology
关键词
地铁车站
主体附属结构
基坑围护
有限元数值分析
模拟梁法
subway station
main auxiliary structures
foundation pit enclosure
finite element numerical analysis
simulated beam methods
