反循环钻孔灌注桩的施工工艺及常见问题处理

Construction Technology of Reverse Circulation Cast-in-Place Bored Pile and Treatment of Common Problems

反循环钻孔灌注桩因具有钻进速度快、成孔质量好、清孔效果佳和施工成本低等特点而被广泛应用于高层建筑、公路桥梁等的基础工程中。结合施工实践,介绍了反循环钻孔灌注桩的施工工艺和常见的质量问题处理。

Reverse circulation cast-in-place bored piles are widely used in high-rise buildings, highway bridges and other engineering foundations, due to its characteristics of fast drilling speed, good hole-forming quality, good hole-cleaning effect, low con structi on cost, and so on. Combined with construction practice, the construction technology and common quality problems of reverse circulation cast-in-place bored piles are introduced.