大直径挖孔桩的设计与施工  

The Design and Construction of Large Diameter Drilled Pile

作　　者：李涤非[1] 

机构地区：[1]鞍钢设计研究院

出　　处：《鞍钢技术》1999年第4期53-56,共4页Angang Technology

摘　　要：针对复杂的地质条件和上部大而集中的荷载结构对基础的要求，通过综合技术分析，选用了挖孔灌注桩基础。施工中采用沉井法、增加护壁厚度、减小长度等一系列措施，克服了流砂、坍孔、涌水等难点，取得了较好的效果。Aimed at complex geology condition and requirements of big and concentive loading structure on upper part for foundation,drilled cast piles foundation is selected through comprehensive analysis. A series of measures such as open caisson,thickening protective wall and decreasing length,etc.are taken to overcome problems of sand drafting,collapse and water gushing,which get better effect.

关 键 词：挖孔灌注桩 大直径 热电厂 设计 施工 输煤系统 

分 类 号：TU473.14[建筑科学—结构工程] TU271.1[建筑科学—土工工程]