路基工程Issue(5)：43-47,5.DOI:10.13379/j.issn.1003-8825.2017.05.10
饱和软黏土地基单桩基础水平荷载模型试验研究
Model Test and Study on Single Pile in Saturated Soft Clay under Lateral Static Load
摘要
Abstract
Lateral static loading model test was conducted on built-in single pile foundation in saturated soft clay and sandy clay with self-made loading device,studying the horizontal bearing capacity and deformation characteristics of this single pile foundation.It was found that,①the maximum bending moment of pile body occurs at the place about five-fold pile diameter below the soil surface,the soil around is in the elastic deformation stage when the lateral load is relatively small (less than 45 N),and the upper soil around has been in the plastic stage when the lateral load is larger with cracks significantly;② the maximum soil resistance occurs at the place three-fold below the surface soil,the resistance will increase with the external load,however,not to increase any more when the external load increases to certain extent;③compared with the test result,the API recommended p-y curve is relatively conservative,showing a relatively small ultimate soil resistance.关键词
单桩基础/饱和软黏土/水平静荷载/p-y曲线Key words
single pile foundation/saturated soft clay/lateral static load/p-y curve分类
建筑与水利引用本文复制引用
吴金标,刘阳,张建经..饱和软黏土地基单桩基础水平荷载模型试验研究[J].路基工程,2017,(5):43-47,5.基金项目
四川省科技计划项目:高速铁路地震监测、预警及紧急处理成套技术项目(申报编号15ZC1687,计划编号2015SZ0068) （申报编号15ZC1687,计划编号2015SZ0068）
