钻孔灌注桩桩端及桩侧后压浆承载力特性研究

摘要

This paper has taken the world trade center project in Wuhan as the object of engineering research. Based on the theory of static load field test and numerical simulation calculation,the end lientang grouting and pile bearing capacity of bored cast-in-situ pile feature launched a comprehensive study. Calculated the single pile limit bearing capacity of grouting,bearing capacity of pile side grouting,grouting pile ultimate bearing capacity,further more,the theoretical calculation results with the field static load test analysis,the grouting on the bearing capacity of bored piles after ascending the size of the size.%以武汉环球贸易中心项目为工程研究案例，基于静荷载现场试验与数值理论仿真计算，对钻孔灌注桩桩端及桩侧后压浆承载力特性展开了综合研究，分别对未压浆的单桩极限承载力、桩侧压浆桩极限承载力、极端压浆桩极限承载力等进行了计算，并将计算结果与现场静载荷试验展开对比分析，获得了后压浆对钻孔灌注桩承载力的提升效果。