桩静载荷试验数据的拟合分析和荷载传递参数计算  

Fitting data analysis of the pile static load test and calculating of parameter of load transfer

作　　者：孙利伟[1] 丁伯阳[1] 王晓臣[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310032

出　　处：《浙江工业大学学报》2008年第2期209-213,共5页Journal of Zhejiang University of Technology

摘　　要：采用荷载传递函数的分析方法,模拟计算桩土之间的应力与位移关系.选取了合理的荷载传递模型,并解出了考虑桩土共同作用的桩身荷载和沉降关系的传递微分方程,得到桩顶荷载与桩顶沉降的关系式.分析整理已有的荷载传递参数推导方法,根据收集的工程地质勘察报告,统计分析得到一定的杭州某些地方地层荷载传递参数.把所算得的荷载传递参数代入所得到的桩顶荷载与桩顶沉降的关系式,结合工程实际土层埋深计算,反复迭代计算得到单桩的荷载沉降曲线,并与工程实际静载荷试验结果进行对比,结果较精确.The numerical interation of the relationship of stress and displacement between pile and soil has been gained by adopting the analysis method of the load transfer function. By choosing proper load transfer model, the transfer differential equation of load and settlement has been solved with the interation between pile and soil taken into consideration. The relationship between load and settlement of the top of the pile is also got. By analyzing the proposed method of calculating load transfer parameter, based on the geologic survey report, parameter of load transfer of the layers in Hangzhou has been gained, which are verified to be quite precise results by the comparison with the in-situ results.

关 键 词：传递函数 微分方程 荷载传递参数 

分 类 号：TU473.1[建筑科学—结构工程]