Multivariate Geotechnical Test Data from Multiple Sites (Water Content, Atterberg Limits, Compressibility, etc.)

This dataset contains over 200 geotechnical test records collected from multiple sites (Site-ID 1 to 18), focusing on the physical and mechanical properties of fine‑grained soils (silts and clays). For each sample, the following parameters are reported: sampling depth, natural water content, specific gravity of soil solids, degree of saturation, liquid limit (10 mm cone method), plastic limit, plasticity index, liquidity index, liquid/plastic ratio, coefficient of compressibility, and site identifier. The data are suitable for exploring correlations between basic physical properties and compressibility, supporting geotechnical site classification, empirical regional correlations, or machine learning model development.本数据集包含采自18个场地（场地编号1至18）的200余组岩土试验记录，聚焦细粒土（fine-grained soils，粉土与黏土）的物理与力学特性。针对每个试样，数据集均报告如下参数：取样深度、天然含水量、土粒比重、饱和度、液限（10mm锥法）、塑限、塑性指数、液性指数、液塑比、压缩系数以及场地标识符。该数据可用于探究基础物理特性与压缩性的相关性，可为岩土场地分类、区域性经验关联分析或机器学习模型开发提供支持。