长江科学院院报2016，Vol.33Issue(10)：98-101,4.DOI:10.11988/ckyyb.20150995
较破碎岩体中桩基竖向承载力分析与探讨
Analysis and Discussion on Vertical Bearing Capacity of Single Pile in Broken Rock Foundation
摘要
Abstract
Pile socketed in broken rock is often regarded as end bearing pile with no regard to the side frictional re -sistance,so that the bearing capacity of pile foundation is not fully utilized .In this research, the vertical bearing ca-pacity of socketed pile in broken rock is analyzed , and the load-bearing performance of pile foundation in broken rock is discussed based on vertical static load test on single pile .The socketed pile of broken foundation rock of a project in Guizhou province is taken as an engineering background .Results show that the side friction of pile seg -ment socketed in rock plays a good role in load -bearing, and the value of side friction varies with different pile com -ponents in the same lithology.According to the test results and parameter calculation , the measured vertical bearing capacity of pile foundation is 4.2-5.5 times as high as the calculated value .As we conclude that the side friction of socketed pile in broken rock is remarkable , if it is designed as end-bearing pile, the engineering cost will increase .关键词
较破碎岩体/嵌岩桩/静载试验/单桩竖向承载力/桩侧摩阻力Key words
fractured rock mass/socket pile/static load test/vertical bearing capacity of single pile/side friction of pile分类
建筑与水利引用本文复制引用
陈筠,王鹏程,季永新,张斌斌..较破碎岩体中桩基竖向承载力分析与探讨[J].长江科学院院报,2016,33(10):98-101,4.基金项目
贵州省科技厅社发攻关项目（黔科合 SY 字［2015］3055）；中建四局科技研发课题资助项目 （）
