结构性黄土临界状态力学性状

Mechanical characteristics of structural loess under critical state

土颗粒之间的联结方式和排列方式是影响土的结构性的两个主要因素,而水和外力可以改变土颗粒间的联结方式和排列方式,破坏了土的结构性。当排列是影响黄土结构性的主要因素时,在外力的作用下,K0结构性黄土表现出临界状态力学性状。对饱和K0结构性黄土进行不同试验,应用临界状态土力学理论进行归纳,分析其规律,总结出在外力作用过程中K0结构性黄土的结构性特殊物理力学性质,为建立结构性土的本构模型提供有力的试验依据。

The two main factors which influence structure of soil are the way of uniting and arranging among soil particles. Furthermore, water and load can change the way of uniting and arranging among soil particles to destroy the structure soil. In this paper, the different tests are done to analyze the mechanic characteristics of K0-consolidation structural loess under critical state, which will be a base to propose a reasonable model to explain the structural characteristics.