CFG桩复合地基用于地铁车站的数值分析

Numerical analysis of CFG pile composite foundation in subway station

依据北京地铁十四号线平乐园站的设计数据建立了有限元模型,对CFG桩应用于地铁车站进行了数值分析,并与桩基础方案进行了比较,结果显示,将CFG桩用于地铁车站中,可改善地基,能达到控制基础沉降的作用,且车站底板弯矩较小,相比桩基础单独作用有一定的优势。

The thesis establishes finite element model according to Pingleyuan station design data of Beijing subway line No. 14, carries out numerical analysis of subway station with CFG pile, and compares it with pile foundation scheme. Results sho~ some merits of applying CFG pile in subway station, such as improving foundation, controlling foundation subsidence, reducing bottom subway station bending moment, compared with the separate effect have the advantage of pile foundation.