科技创新与应用2024，Vol.14Issue(4)：24-27,4.DOI:10.19981/j.CN23-1581/G3.2024.04.006
托底抗拔桩侧摩阻力发挥机理及计算模型研究
摘要
Abstract
Uplift piles effectively solve the negative impact of groundwater on the floating effect of buildings.The bottom-loaded uplift pile effectively combines unbonded steel strands with ordinary uplift piles,fully utilizing the bearing capacity of the pile body.Based on the Effective Stress Method,the distribution range of ultimate frictional resistance on the pile side is determined.The double-dogleg load transfer function is used to simulate the characteristics of frictional resistance on the pile side,explore the variation law of bearing capacity of bottom-loaded uplift piles,establish the calculation formula for the range of frictional resistance on the pile side and load displacement,propose a calculation model for the bearing capacity of bottom-loaded upliftpiles,and compare the performance with ordinary uplift piles.The results indicate that compared to traditional uplift piles,the bearing capacity of bottom-loaded piles is higher and the displacement of the pile top is smaller.The research results provide a theoretical basis for the application of bottom-loaded upliftpiles.关键词
托底抗拔桩/侧摩阻力/发挥机理/计算模型/有效应力法Key words
bottom-loaded uplift pile/side friction resistance/mechanism of performance/calculation model/Effective Stress Method分类
建筑与水利引用本文复制引用
王坤,王玉祥,陶思源,刘苏,马露,朱学敏..托底抗拔桩侧摩阻力发挥机理及计算模型研究[J].科技创新与应用,2024,14(4):24-27,4.基金项目
安徽水利开发有限公司科研项目(KY2022-C55) （KY2022-C55）
安徽省高校优秀拔尖人才培育项目(gxyq2022052) （gxyq2022052）
安徽省教育厅自然科学重大项目(2023AH040274) （2023AH040274）
