高速公路施工中钻孔灌注桩的质量控制要点

Quality control points of bored pile in highway construction

以冲击钻或循环钻机成孔为例,说明了钻孔桩施工中各工序的质量控制要点,介绍了常见的混凝土离析和堵管处治方式,以通过加强各环节的质量控制,提高成桩质量,对提高工程经济效益具有重要意义。

Taking percussion drill and circulation drill hole forming as an example,the paper illustrates quality control points of bored pile construction technology,introduces common concrete disintegration and pipe blocking processing methods,with a view to strengthen quality control and to improve pile forming quality,which has significant meaning for improving economic benefits of the engineering.