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静力触探是原位测试中常用且有效的技术之一,常常用来进行场地地层土性分类。而国内分类评判方法一般偏于定性分析,不同经验程度的工程师据此判定结果可能会有较大的差别。为了深化静力触探测试成果在土体分类方面的定量应用,本文对欧美发达国家常用的Robertson土性分类图表法进行了简介,并针对黄海潮间带某一工程场地地层原位静力触探测试成果进行了数据的优化处理和土性分类研究。通过应用研究发现,采用地层土性指数分类方法,可以把握地层土性分布特性随深度连续渐进变化的规律,是一种快速、可复验式、精度高的定量分析判定方法,值得推广应用。
Static cone penetration is one of the most commonly used and effective techniques in in situ testing and is often used to classify the formation’s formation. However, the domestic classification methods generally tend to be qualitative analysis, and engineers with different levels of experience may make a big difference in determining the results. In order to deepen the quantitative application of the static cone penetration test results in soil classification, this paper introduces Robertson’s soil classification chart method commonly used in developed countries in Europe and the United States. In addition, Exploration test results were optimized data processing and soil classification studies. Through the application research, it is found that using the classification method of formation soil index can grasp the law of continuous and gradual change of distribution of formation property with depth. It is a fast, retestable and accurate quantitative analysis and judgment method, which is worthy of popularization and application.