摘要
本文针对国内公路桥梁钻孔灌注桩中因采用泥浆护壁的无套管桩而由沉渣、孔壁泥层过厚造成桩基础承载力降低的问题进行探讨，并从施工工艺方面提出合理有效的措施，以确保桩基础承载力的正常发挥。
This paper discusses that workers adopt without casing pile of the slurry wall in drilling hole pour pile of internal highway bridges producing the problem of pile bearing capacity reducing, and puts forward the rational and effective measures from construction technology. These pledge the bearing capacity normal playing of pile foundation.
