水力发电2017，Vol.43Issue(8)：44-47,66,5.
岩土小样本参数区间估计方法探讨
Discussion on Interval Estimation Method for Small Sample Parameters of Rock and Soil
摘要
Abstract
The calculation of the distribution range of geotechnical parameters is a fundamental work in reliability analysis method.In actual project,as the number of samples is limited,the geotechnical parameters are mostly small sample.By comparing existing geotechnical parameter interval estimation methods of small sample (3σ laws,considering of skewness distribution range correction method and non-parametric Bootstrap method),the application and the deficiencies of above three methods is discussed.By combining the characteristics of interval estimation of geotechnical parameters,an improved gray self-help method is proposed for interval estimation of geotechnical parameters.The results show that the improved method is superior to existing method by comparing the distributions of different parameters and the number of samples.关键词
岩土工程/小样本/参数/区间估计Key words
geotechnical engineering/small sample/parameter/interval estimation分类
建筑与水利引用本文复制引用
李化云,范洪海,胡端..岩土小样本参数区间估计方法探讨[J].水力发电,2017,43(8):44-47,66,5.基金项目
国家青年科学基金项目(51608450) （51608450）
西华大学绿色建筑与节能重点实验室开放基金项目(szjj2015-075) （szjj2015-075）
