钻孔灌注桩应重视的关键工序及事故预防

On key procedures and accidents prevention in bored piles

介绍了钻孔灌注桩的施工工艺流程,对护筒、泥浆、钻机、钢筋笼、清孔、导管六项关键工序的施工注意要点进行了详细论述,并分析了钻孔灌注桩常见的质量问题的原因,研究了相应的防治对策,以确保钻孔灌注桩的质量。

The paper introduces the construction craft procedures of bored piles, indicates the construction precautions for the key procedures, in- eluding pile casing, slurry, drilling machine, reinforced cage, hole cleaning, pipelines, analyzes reasons for common quality problems of bored piles, and researches respective prevention strategies, so as to ensure the quality of bored piles.