The Application of Post-grouting Technique for Bored Piles in Karst Region

Through engineering examples in the pile foundation construction of a high-rise building in karst region, this paper introduced the consolidating principle of post-grouting technique for boredpiles. Combining with engineering practice, it illustrated the design of post-grouting piles, grouting process, grouting materials, grouting parameters, the abnormal situation and handling measures when grouting. The results showed that post-grouting technique for bored piles can achieve good reinforcement effect and good technical effect.