钻孔灌注桩质量通病的成因及其预防

Forming reason of the common quality problems of cast-in-place bored pile and its prevention

针对钻孔灌注桩常见的质量通病,分析了影响成桩质量的原因,探讨了塌孔、成孔后垂直度偏差较大、断桩或夹层、桩身空洞、蜂窝、夹泥等质量通病的预防措施,从而确保成桩质量和桩基工程的安全。

According to the common quality problems of cast-in-place bored pile, it analyses the reasons that influence pile quality, discusses the preventive measures to the common quality problems such as hole collision, large perpendicular degree error after hole formed, pile broken or mezzanine, void in pile, beehive and mud larding, so as to guarantee the safety of pile quality and pile foundation projection.