钻孔灌注桩活门法成桩工艺的应用

The application of trapdoor method in cast-in-place bored pi le construction

介绍了桩基工程采用活门法灌注首批混凝土成桩的方法,进行了灌注前的技术准备和灌注过程的研究,达到了有效排净孔底沉渣和导管内的泥浆效果,解决了其他灌注方法造成的卡塞、堵管等引起的质量问题。

The pilling technology utilizing trapdoor meth od in one pile foundation works is introduced. Based upon study on preparation wor k and pouring technology the hole bottom residue and mud in conduit are cleared, which also resolved the plugging and other quality problems caused by other pou ring ways.