谈大直径钻孔灌注桩(后注浆)在工程中的应用

Brief understanding of large diameter bored cast-in-situ piles(post grouting) in project application

介绍了大直径钻孔灌注桩(后注浆)的原理,结合具体工程实例阐述了钻孔灌注桩在工程中的应用及后注浆应注意的问题,提出后注浆施工技术可以明显提高单桩承载力。

The paper introduces the principle for the large-diameter bored piles （post-grouting）, illustrates the application of the bored piles in projects and some precautions for the post-grouting by combining with factual projects, and points out the post-grouting construction technique can enhance the loading capacity of the single pile.