港口航道与近海工程2024，Vol.61Issue(4)：36-43,8.DOI:10.16403/j.cnki.ggjs20240407
基桩承载力反向自平衡试桩法模型试验研究
Research on Model Test of Reverse Self-Balanced Pile Testing Method for Pile Bearing Capacity
摘要
Abstract
As for the application of reverse self-balanced pile testing method in engineering practice,the feasibility of this method is studied through indoor model test.Firstly,the model test device was designed and poured.Secondly,the test data were obtained by conducting the loading tests of pile body and top respectively.Finally,the test results were compared with the calculation result by using the empirical formula method.The research results show that the position of load box cannot provide enough balance force required by two loading at the same time based on the reverse self-balance pile testing method.The results are also affected by the loading sequence and the reserved spacing between the upper and lower piles.In addition,A series of researches must be conducted,which covers the determination of the optimal loading sequence,load compensation,and the determination of the reserved distance between the upper and lower piles.关键词
基桩/经验公式法/自平衡试桩法/反向自平衡试桩法/模型试验装置/Q-s曲线Key words
foundation pile/empirical formula method/self-balanced pile testing method/reverse self-balanced pile testing method/model test device/curve Q-s分类
土木建筑引用本文复制引用
李永,刘志杰,刘永莉..基桩承载力反向自平衡试桩法模型试验研究[J].港口航道与近海工程,2024,61(4):36-43,8.基金项目
国家自然科学基金项目:溶洞特征对地基破坏模式及基桩承载力的作用机理研究(51608181) （51608181）
