沉降计算经验系数的Bootstrap法置信区间估计OA北大核心CSCDCSTPCD
Estimation of confidence interval of empirical coefficients in calculating foundation settlement by Bootstrap method
采用Bootstrap法推断小样本条件下的沉降计算经验系数概率特征及置信区间,以解决工程中沉降计算经验系数样本量很少,难以应用常规统计方法分析其概率分布的问题.直接对样本重抽样,根据Bootstrap样本逼近参数真实分布,并纠正Bootstrap仿真过程中出现的偏差,以获得参数的无偏置信区间.通过某客运专线路基工程实例分析,得出:采用Bootstrap法可较好地推断小样本条件下沉降计算经验系数未知参数的概率分布,获得参数的置信区间;当面荷载在40…查看全部>>
Because of the scarcity of samples in engineering and the difficulty in inferring the probabilistic distribution of empirical coefficient by regular methods during the calculation of foundation settlement, the probabilistic distribution and confidence interval of empirical coefficient were determined by Bootstrap method. By re-sampling from the existing samples, the true distributions of parameters were approximated by Bootstrap method and the possible devia…查看全部>>
谢桂华;张家生;刘荣桂
江苏大学土木与力学学院,江苏镇江,212013中南大学土木工程学院,湖南长沙,410075江苏大学土木与力学学院,江苏镇江,212013
建筑与水利
沉降经验系数小样本Bootstrap法置信区间
settlement empirical coefficients small sample Bootstrap method confidence interval estimation
《中南大学学报（自然科学版）》 2011 (9)
基于高性能材料CFRP索的超大跨桥梁原型设计与相关问题研究
2843-2847,5
国家自然科学基金资助项目(51078170)江苏大学基金资助项目(10DJG097)江苏大学博士后科研资助项目(1143001087)
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