元磨高速公路特大桥大直径桩基施工方法选择  

Construction method selection of large diameter pile foundation of one super large bridge in Yuan-Mo expressway

作　　者：隋玉明 刘映 

机构地区：[1]江西省交通设计院 [2]江西省交通设计院岩土工程所

出　　处：《山西建筑》2008年第5期152-153,共2页Shanxi Architecture

摘　　要：结合元磨高速公路K306+814特大桥工程概况,详细介绍了该工程桩基础施工方法的比较与选择,经分析,采用竖井掘进成孔工艺进行施工,解决了大直径桩深基础在硬质岩区施工难、工期长的难题,为类似工程提供了参考依据。Combined with general engineering situations of K306 ＋ 814 super large bridge in Yuan-Mo expressway the selection of construction of pile foundation of this work is introduced in detail. Based upon comparative analysis vertical excavation technology is introduced, which resolve the difficulties encountered in construction of large diameter pile foundation in hard rock region and provide good references for similar works.

关 键 词：大直径桩基础 施工 高速公路 混凝土 安全性 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]