在桩底灌浆预制桩承载性能的研究基础上，进一步研究桩底灌浆钻孔灌注桩的承载性能。
Based on research on the behavior of precasted pile and grouted at pile bottom, the behavior of boring pile grouted at pile bottom is studied further.
本文根据某工程中钻孔灌注桩的现场试验，对桩端压力灌浆技术在卵石层中灌注桩的应用效果及其经济效益进行了分析。
Based on site tests, this paper discusses the effect of pressure grouting under piles tip in cobble layer and analyzed its economical and social benefit.
对压密灌浆法用于桩底灌浆提高钻孔灌注桩承载力的工艺和机理进行了探讨。
Technology and mechanism of compaction grouting used in bored pile base grouting to enhance the bearing capacity are discussed.
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