摘要
介绍了桩基静载试验自平衡测试技术的理论依据,并结合实际静载试验,对佛山市和北公路主干线平胜大桥北引桥工程的某单桩进行自平衡法静载试验,通过检测桩的竖向承载力,得到了Q-S曲线分布、分层岩土的摩擦阻力、桩基端部阻力等,从而检验桩基承载的安全性。结论表明,基桩承载力自平衡测试法能测出基桩承载力,更加快捷、方便且不受施工场地条件的限制。研究课题能为同类基桩检测工程问题提供借鉴经验和参考依据。
The paper introduces the theoretical basis of self-balance testing technology of pile foundation static load test.Combined with the actual static load test,self-balance static load test is carried out on a single pile of north-crossing bridge project of Pingsheng Bridge of Foshan and North Highway.The vertical bearing capacity of the pile,the QS curve distribution,the frictional resistance of the layered soil and the resistance of the pile foundation,are obtained to test the safety of pile foundation bearing.The conclusion shows that the self-balance test of pile capacity can measure the bearing capacity of pile,which is faster,more convenient and not limited by the construction site conditions.The research can provide reference and experience for the same type of pile testing engineering problems.
出处
《萍乡学院学报》
2017年第6期37-41,共5页
Journal of Pingxiang University
关键词
桩基
静载试验
自平衡测试
侧摩阻力
pile foundation
static load test
self-balance test
side friction
