钻孔灌注桩质量事故分析及补强施工技术应用

Quality Accident Analysis and Reinforcement Construction Technology of Drilling Piles

钻孔灌注桩受施工工艺影响存在诸多不利于桩基承载力的因素,如成孔施工中泥浆护壁过厚、桩周土软化、孔底沉渣过厚等,本文通过检测实例剖析桩基础质量事故原因并提出相应的补强方案,应用效果良好,可供今后类似项目参考。

Drilling piles are affected by the construction process,there are many factors that are not conducive to the bearing capacity of the pile. In the process of forming the hole,the mud is too thick,the soil around the pile is softened,the bottom of the pile is too thick and so on. In this paper,through the example,the paper analyzes the causes of the quality of the pile foundation,puts forward the corresponding reinforcement technology construction plan,and successfully applied,the effect is good. It has great guiding significance for the future similar pile foundation treatment project.