Canadian Geotechnical Journal, Ahead of Print.
Plasticity index, Ip, is a relatable parameter for most geotechnical engineers, because Ip can be used to estimate other soil properties, such as internal friction angle, compression index, and low-strain shear modulus. Consequently, a method for estimating Ip directly from a piezocone penetration test (CPTU), which measures cone resistance, sleeve friction, and pore pressure would be useful for many practising geotechnical engineers. This technical note presents a method for estimating Ip profiles entirely from CPTU data. The new method has been calibrated using a case database of 258 complementary measurements taken, in natural soils, at 25 globally distributed marine sites.

中文翻译：

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直接根据饱和天然土壤中的压电锥渗透测试估算塑性指数

加拿大岩土工程杂志，印刷前。
塑性指数 Ip 对于大多数岩土工程师来说是一个相关参数，因为 Ip 可用于估计其他土壤特性，例如内摩擦角、压缩指数和低应变剪切模量。因此，一种直接通过压电锥渗透测试 (CPTU) 估算 Ip 的方法（测量锥体阻力、套筒摩擦力和孔隙压力）对于许多实践岩土工程师来说将是有用的。本技术说明介绍了一种完全根据 CPTU 数据估计 Ip 配置文件的方法。新方法已使用案例数据库进行了校准，该案例数据库包含在全球 25 个海洋地点的天然土壤中进行的 258 项补充测量。