灌注桩堵管后避免断桩的施工方法——二次插管施工法

The construction method to avoid pile break after pipe plug of driven cast-in-place pile secondary intubation construction method

灌注桩施工工艺较为复杂 ,风险较大。施工中常出现堵管 ,由于处理不当而形成断桩 ,造成经济损失。通过灌注桩施工实践 ,总结出二次插管施工过程及施工要点 ,较为简易地处理了因堵管引起的断桩问题。该方法具有不需增加其它设备、时间短、投入费用少的优点 。

The technology of driven cast in place pile is complex and has higher risk. Because the pipe plugging always occurs in construction this cause the pile break and make economic losses. Through the practice of driven cast-in-place pile construction the process of secondary intubation construction and the construction key points are summarized. The pile break problems are easily solved. This method has some advantages as short time, small invest. This method is worth popularized.