挤扩支盘桩侧阻力分析  

Skin friction analysis of the squeezed branch and plate pile

作　　者：高笑娟[1] 朱向荣[1] 刘向阳 肖朝阳 

机构地区：[1]浙江大学岩土所 [2]机械工业第四设计研究院,河南洛阳471039

出　　处：《煤田地质与勘探》2007年第5期50-53,共4页Coal Geology & Exploration

摘　　要：假定支盘桩直桩段的桩侧摩阻力和含有分支或承力盘桩段的等效侧摩阻力q与相应桩土相对位移s的关系可用双曲线函数表示,根据实测数据采用最小二乘法求出所需系数,并用所得的双曲线与实测各分段的q-s关系进行对比。结果表明,在各分段达到极限承载力前,q与s基本上符合双曲线关系,用该法可以估算各分段的极限摩阻力。The load-settlement relationship of skin friction q of every part of squeezed branch and corresponding settlement s of plate pile is presupposed as hyperbolic function, the necessary parameters are obtained based on the measured data, and compared with q-s relationship of measured every part. The calculated curve is agree well with the measured curve before the ultimate load of every part. This indicates that this method can be used to estimate the ultimate skin friction resistance of every part of the pile.

关 键 词：挤扩支盘桩 侧摩阻力 双曲线函数 

分 类 号：TU473.1[建筑科学—结构工程]