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界限含水量通常是指土的液限、塑限和缩限。众所周知,液限和塑限是粘性土极为重要的指标,是粘性土工程分类的主要依据,和天然含水量一起,是估价土的工程特性的主要参数。早在1911,瑞典农学家阿太堡(Atterberg)研究农用土的物理状态,提出土从固态过渡到液态的五个阶段,将液限定义为粘滞流与塑态的界限含水量,塑限定义为塑态与半固态的界限含水量,故通称为阿太堡限度。此后,太沙基(Terzaghi)将它引用于土力学,1932年
Boundary moisture content usually refers to the liquid limit, plastic limit and shrinkage limit of the soil. As we all know, the liquid limit and plastic limit are extremely important indicators of clay soil, and are the main basis for engineering classification of clay soil. Along with the natural moisture content, it is the main parameter of the engineering properties of soil. As early as 1911, the Swedish agronomist Aterberg studied the physical state of agricultural soil and proposed five stages of the transition from solid to liquid state. The liquid limit was defined as the boundary water content between viscous flow and plasticity, and the plastic limit. Defined as the bound water content of the plastic and semi-solid, it is known as the Ateborg limit. Since then, Terzaghi cited it in soil mechanics, 1932