实测资料分析钻孔灌注桩桩土间相互作用  

Analysis of Drilling Pile-soil Interface Interaction with Measured Data

作　　者：李淼[1] 佴磊[1] 

机构地区：[1]吉林大学建设工程学院,长春130026

出　　处：《工程勘察》2006年第5期41-44,共4页Geotechnical Investigation & Surveying

基　　金：吉林省交通厅科研项目(项目编号:2003-1-13)

摘　　要：应用实测数据分析了大型钻孔灌注桩桩土接触面法向作用力随时间和空间的分布规律,得出考虑深度效应,桩土接触面法向作用力在临界深度以上随深度的增加而增大,在成桩阶段某深度处,桩土接触面法向作用力随时间按幂函数规律递减,最后趋于稳定的结论。Measured data is used in analysis interface normal interaction stress of large-scale drilling pile with time and spatial distribution, and the conclusion is gotten that the interaction stress grows with depth till the critical point when depth effect taken into account. The stress of a certain depth declines with time in a power function regularity during pile-formation period, the decline acceleration decreases and comes to stability.

关 键 词：实测资料 钻孔灌注桩 相互作用 

分 类 号：TU473.14[建筑科学—结构工程]