钻孔灌注桩是一种非挤土桩,具有承载力高、施工设备简便、实用性强、对周围环境影响小等优点,已被广泛的应用于工程建设中。本文以京沪高铁某段桥梁墩基础为例,介绍了钻孔灌注桩的施工工艺,分析了施工过程中可能遇到的问题,以及产生缺陷的原因,及其应对措施。 Bored pile is a kind of non-compacted pile with high bearing capacity, simple construction equipment, practicality and small impact on the surrounding environment. It has been widely used in engineering construction. In this paper, taking a bridge pier foundation of Beijing-Shanghai high-speed railway as an example, this paper introduces the construction process of bored piles, analyzes the problems that may be encountered in the construction process, the causes of the defects and the countermeasures.