关于岩土样本统计分析的几点讨论

结合岩土单元体的天然成因及人为设定的基本特性，阐述了岩土样本离散的必然性及其离散程度与岩土单元体分划范围的相关性，通过对变异系数的适用性及岩土样本概况性的分析，提出采用均同指数评价样本分布的离散程度和按相对容量标准控制岩土样本数量等观点，建议切实针对岩土母体的分布形态推断标准值，同时对小样本条件下标准值的确定方式进行了分析和建议。

Viewpoints on Statistical Inference for Geotechnical Sampling

It is common that geotechnical samples are delimited according to the natural geological origin and period. The necessity of dispersion of geotechnical sampling probability distribution, and the degree of diversity is relative to partitioned range of the base layer are expounded. Based on the analysis result of the applicability of variation coefficient and the generality of sampling, the use of the resemblance index to appraise the degree of the dispersion is advanced, and the number of geotechnical samples must be strictly controued according to the principle of relative capacity. The author suggests, according to the essence of the base layer to infer the risk limit data, should be by another method in a small amount samples condition.