反循环钻孔桩特性与工程应用

The Property of Reversed Bored Pile and its Engineering Application

反循环钻孔桩由于在成桩工艺技术上有所突破,使桩质量大为提高,成桩速度也比其它工艺方法快1～2倍以上,桩的承载力平均可提高10～20％,解决了其它工艺方法进行钻孔桩施工所带来的一些技术质量问题。

Owing to a big breakthrough in pile formation technology, the reversed bored pile brings better quality, one or two times higher speed than ordinary pile formation technology adopted, and 10～20％ increase of bearing capacity into being. As a result, it solves defectiveness in pile quality caused by the adoption of other pile formation technology.