桩端压力注浆在基桩加固中的应用

Application of Pile End Pressure Grouting in Foundations Piles Reinforcement

在大直径灌注桩基桩加固中,桩端持力层力学性能不良、桩底沉渣过厚等原因造成单桩承载力达不到设计要求的情况,可以运用桩端压力注浆的方法进行加固。并阐述了实现合理的桩端注浆条件,桩端注浆提高单桩承载力的机理以及注浆加固效果分析。

In the reinforcement of big diameter pouring pile foundation piles, single pile bearing capacity cannot meet the design requirements because of bad pile end bearing stratum mechanics performance and thick pile bottom slag which can be reinforced by the use of pile end pressure grouting. The paper describes the conditions of realizing reasonable pile end grouting; pile end grouting can improve mechanics of single pile bearing capacity and impact analysis of grouting reinforcement.