灌注桩后压浆技术的工程实践

Engineering Practice of Post-grouting in Cast-in-situ Pile

摘要:

钻孔灌注桩的孔底沉渣和桩侧泥皮限制了灌注桩的应用,而灌注桩后压浆技术的应用，较好地解决了这一难题。结合工程实际，叙述了后压浆技术的施工技术要点和施工控制措施，分析了影响注浆管“开塞”的因素及确保成功“开塞”的技术措施。

Abstract:

The application of bored pile is restricted because of the hole bottom sediment and mudcake on pile, which is solved by the post-grouting technology in cast-in-situ pile construction. Combined with the engineering practice, the paper discusses the main technical points and control measures in construction of post-grouting and analyzed the affecting factors on holes “rushing” of grouting pipe and the technical measures to ensure the holes “rushing” of grouting pipe.