摘要
在深入分析了浙江沿海地区桩周土的静探侧摩阻力平均值、静探锥尖阻力平均值与休止期关系的基础上,推导了单桩初始极限承载力的计算公式,给出利用静载试验值来确定静载试验值对应的单桩极限承载力的方法。运用数理统计的回归拟合方法,得出能够比较准确反映单桩极限承载力增长率与休止期关系的规律,结果表明与实测工程数据相当吻合。
Based on the deep analysis of the relationship between the average value of side detecting friction resistance,the average value of end detecting resistane and fallow time,a mathematical expression for calculating the ultimate bearing capacity of a single pile is proposed.The approach to calculate the bearing capacity with the test result is presented.By using the recursive method of statistics,the relationship between the ultimate load bearing capacity of a single pile and fallow time is approximated.Through that mathematic analysis,the low of the increasing ultimate bearing capability of single pile is educed,which may be of reference for engineering practices.
出处
《低温建筑技术》
2005年第2期66-68,共3页
Low Temperature Architecture Technology
关键词
预应力管桩
单桩极限承载力
休止期
时间效应
reinforced pipe pile
ultimate load bearing capacity of a single pile
time of repose
time effect
