河南理工大学学报（自然科学版）2017，Vol.36Issue(2)：122-127,6.
挤扩支盘桩与钻孔灌注桩现场对比试验研究
Comparative test research on squeezed branch piles and bored piles field
摘要
Abstract
In order to study bearing characteristics of squeezed branch piles,through the field static load tests of the squeezed branch pile and the bored pile,comparative analysis of the axial force distribution and the development of pile shaft resistance and pile toe resistance are done.Load transfer mechanism system of the branch pile and the side friction characteristics of the branches in different positions are thorough analyzed.The experiment results show that,the bearing characteristics of branch piles are stable,and its"Q-S"curves of branch piles are slow transformation.The anti-sedimentation deformation characteristics of the squeezed piles are significantly better than that of the bored piles.The side friction of the support plate plays earlier and more adequate than that of the lower branch.The bearing capacity of branch piles is about 36％ higher than that of bored piles.关键词
挤扩支盘桩/荷载传递机制/支盘/承载特性/极限承载力Key words
squeezed branch pile/load transfer mechanism/bearing capacity/ultimate bearing capacity分类
建筑与水利引用本文复制引用
张敏霞,崔文杰,徐平,丰晓灿..挤扩支盘桩与钻孔灌注桩现场对比试验研究[J].河南理工大学学报（自然科学版）,2017,36(2):122-127,6.基金项目
国家自然科学基金资助项目(51508166,51504081,U1404527) （51508166,51504081,U1404527）
河南省教育厅科研项目(14B560021) （14B560021）
