摘要
介绍了桩身和桩端的三参数荷载传递函数模型,推导了桩顶荷载-沉降关系P-S曲线的迭代算法,讨论了荷载传递函数模型中各参数对桩顶荷载-沉降关系曲线的影响;采用该文所推导的桩顶荷载-沉降关系P-S曲线的迭代算法,计算了南京两个实际工程中的两根大直径桩的桩顶荷载-沉降关系曲线,计算的曲线与静载试验得到的曲线吻合很好.这表明,文章提出的方法对计算大直径单桩的曲线具有较好的适用性,利用桩身和桩端的三参数荷载传递函数模型和迭代算法分析大直径单桩的承载性状是可行的.
In this paper, the three parameters load transfer function of pile skin and bottom is recommended, and the iterative arithmetic to compute pile load-settlement curve is given. The effect of the deviation of parameter values in the load transfer function on the pile load-settlement curve is analyzed. With three parameters load transfer function and iterative arithmetic , the load-settlement curve of pile embedded in homogeneous or layered soils can be obtained which is access to the results of static load test of single pile. It can be seen that the method suggestd in this paper is suitable for calculating the ultimate bearing capacity of large-diameter single pile and the empirical parameters given by this paper are justified.
出处
《徐州工程学院学报》
2005年第1期29-35,共7页
Journal of Xuzhou Istitute of Technology
基金
高等院校骨干教师基金
关键词
大直径单桩
承载性状
桩顶荷载-沉降关系
三参数荷载传递函数
迭代算法
large-diameter single pile
bearing capacity
pile load-settlement curve
three parameters load transfer
iterative arithmetic
