基桩模型试验及时效性研究现状——竖向循环荷载作用  

Research Status of the Pile Model Test and Pile Timeliness——Vertical Cyclic Loading

作　　者：胡娟[1,2] 胡敏萍[1] 

机构地区：[1]浙江树人大学城建学院,浙江杭州310015 [2]陕西铁路工程职业技术学院,陕西渭南714000

出　　处：《福建建筑》2017年第3期63-67,共5页Fujian Architecture & Construction

基　　金：浙江树人大学引进人才项目(2016R001);陕西省教育厅项目(15JK1168);交通运输部应用基础研究项目(2012-319223020)

摘　　要：桩基础理论研究与工程应用比较广泛,文章总结了学者们对砂土、粘土、粉土及红粘土等地基土中桩基模型模拟海洋平台中的受力,如竖向循环荷载作用下桩顶沉降和桩基承载力与桩侧摩擦系数与循环次数、循环荷载比以及循环加载速率有关,而地基土的种类以及土的参数不同时,结果也不相同。研究现状表明,对于在役公路的黄土地基桩基在轴向循环荷载方面研究甚少,有待深入进行探讨。对于模型试验研究的总结,能够为复杂施工条件下桩基承载机理的认识与应用提供科学依据。The theoretical research and engineering applications of foundation piles were used more widely today,the paper summed up the findings of the modeling test on pile foundation by the axial cyclic loading in the sand,clay,silt and red clay soil. The results showed that the influences of the pile bearing capacity and the skin friction,were the number of cycles,maximum cyclic load and the cyclic loading rate. Whereas the result is not the same as the foundation soil types and soil parameters are different. The scholars mainly simulated the pile foundation in the sand and clay by the ocean storm loading,however,the studies on the pile foundation in the loess on highway loading were little. The summary of the study on the pile foundation modeling test will provide scientific basis for the study and application of the pile foundation＇s capacity and skin friction mechanism under the complicated construction conditions.

关 键 词：基桩 轴向循环荷载 模型试验 研究现状 

分 类 号：TU473.1[建筑科学—结构工程]