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水磨钻(取芯机)人工挖孔施工与一般的人工挖孔施工方法主要的区别在于挖孔过程所采用的设备和施工工艺,而其钢筋笼加工、混凝土灌注与一般的人工挖孔桩无特别之处。通过笔者在永川长江大桥29号过渡墩采用水磨钻成孔之实践,阐述水磨钻桩基成孔的施工条件、工艺等特点,为类似地质条件下水磨钻施工提供参考。
The main difference between manual digging hole construction and manual digging hole construction method is the equipment and construction technology used in digging holes. However, the reinforcement cage processing, concrete pouring and ordinary manual digging pile pile Special Through the practice of using water mill drilling for the transition pier of No. 29 Yongchuan Yangtze River Bridge, the author expounds the construction conditions and technology of drilling the pile foundation of the water mill drilling and provides reference for the construction of the water mill drilling under similar geological conditions.