通过介绍钻孔沉管后注浆工艺在PHC管桩上的应用,并结合实际工程,通过静载试验及经济效益比较,阐述了后注浆工艺对PHC管桩承载力提高的可行性,为今后PHC管桩后注浆工艺提供了设计、施工及试验参数。 By introducing the application of grouting in PHC pipe pile after immersed in borehole and combining with the actual project, the feasibility of improving the bearing capacity of PHC pipe pile by post-grouting is expounded through the static load test and economic comparison. The future PHC pipe pile grouting process provides design, construction and test parameters.