合肥轨道交通地下二层车站主体围护结构分析研究

Analysis of Retaining Structure of Main Body of Underground Two-level Station in Hefei Rail Transit

合肥轨道交通地下车站围护结构型式基本采用钻孔灌注桩。针对地下二层车站主体围护结构型式,采用资料调研、数值模拟等方法,在研究分析工程地质、水文地质条件和地层组合特点的基础上,针对不同车站情况对围护结构桩径及间距进行了分析研究。

The underground rail transit station mainly uses bored pile as retaining structure in Hefei.The retaining structure of the main body of underground two-level station is studied.Based on the analysis of engineering geological and hydrogeological conditions and strata characteristics,the diameter and spacing of bored piles of different stations are analyzed by data investigation and numerical simulation methods.