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合理子样数应随土的性质、指标特征、土样质量和工程要求而异。本文在分析了沿海平原各主要土层的物理力学性质指标变异性的基础上 ,运用概率统计方法 ,针对不同土层不同的物理力学性质指标提出了岩土工程勘察合理子样数确定原则。
The number of reasonable subsamples should vary with the nature of the soil, the characteristics of the indicator, the quality of the soil sample and the engineering requirements. Based on the analysis of the indexes of physical and mechanical properties of the main soil layers in the coastal plain, this paper presents the principle of determining the number of rational sub-samples for geotechnical engineering according to different physical and mechanical properties of different soil layers by using the method of probability and statistics.