摘要
对 78根钻孔桩和 12 8根打入桩的承载力和端阻及侧阻的归一化参数进行了统计分析 ,通过比较发现 ,其分布宜采用对数正态分布 ,另外还分别对钻孔桩和打入桩的整体可靠指标用校准法进行了计算 ,得到其可靠指标分别为 4.11和 4.5 6 。
Statistical analysis on the bearing capacity of 78 bored piles and 128 drilled piles and on the normalized parameters of these piles' end and side resistance was carried out. It is found out by comparison that the ratios of the measured values to the calculated ones of the bearing capacity, the end resistance and the side resistance conform to lognormal distribution. Meanwhile, the total piles' reliability indexes are calculated by calibration method, with a result showing that the reliability of the bored piles is 4.11 and the drilled piles 4.56.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2001年第3期332-335,共4页
Journal of Southwest Jiaotong University
基金
铁道部科技发展基金项目 !(97 14)
关键词
桩
统计分析
极限承载力
可靠度
piles
statistical analysis
bearing capacity
reliability
