浅析公路桥梁钻孔灌注桩的施工及控制技术

Shallow analysis on highway bridge bored pile construction and controlling technique

结合具体工程实例,针对桥梁钻孔灌注桩施工难点,介绍了钻孔灌注桩施工工艺,分别阐述了施工过程中产生粘钻,孔壁坍塌,扩孔等质量问题的原因,并提出了相应的控制技术,以期指导实践,保证施工质量。

Based on specific engineering case,in light of bridge bored pile construction difficulties,it introduces the bored pile construction technology,respectively describes causes of quality problems occurring in construction process,such as drill tool sticking,wall collapse and reaming etc,and proposes corresponding controlling techniques,with a view to guide practice and to guarantee construction quality.