赵顺波    （华北水利水电学院土木系  郑州 450045）

    刘爱军  耿六成    （河北省水利厅  石家庄 050011）

[提要]  介绍直径为l.0m，长度为68.03m的钻孔灌注试验桩的静载测试试验，对荷载  沉降量曲线、桩身轴心压力沿深度的分布规律、桩侧摩阻力与桩土相对位移关系以及桩端反力等进行了计算分析，给出了主要受力土层的单位极限摩阻力建议值和试验桩的极限承载力建议值。
[关键词]  钻孔灌注桩  静载试验  桩侧摩阻力  极限承载力

It is introduced that the static load test method of a bored cast-in-situ pile with l.0m of diameter and 68.03m of length tested in the highway bridge project from Jiaozuo to Gongyi across the Yellow River. The relationship of load to subside, the distribution of centric compressed force along pile depth, the relationship of friction force around pile to relative displacement between pile and soil, and the end active force of pile are analyzed. The unit ultimate friction force of the main layer of soil and the ultimate bearing capacity of the test pile are proposed.
Keywords: bored cast-in-situ pile; static load test; friction force around pile; ultimate bearing capacity