贵阳地基红黏土的Singh-Mitchell蠕变模型研究

为了准确地了解贵阳地基红黏土的蠕变特性，以贵州铝厂分级过滤车间地基红黏土为研究对象，采用分级加载法进行了室内三轴固结排水蠕变试验，获得该地基红黏土蠕变试验数据和曲线，并通过采用Singh-Mitchell应力-应变-时间经验蠕变方程，结合所得到的试验数据，分析得出了贵阳地基红黏土在不同应力条件下的蠕变形式。该方程参数少，能够较好地拟合试验曲线及更好地描述贵阳地基红黏土的蠕变特性。

Study on Singh-Mitchell Creep Model of Foundation Red Clay in Guiyang

In order to accurately understand the creep characteristics of foundation red clay in Guiyang, the red clay in the stage filtration workshop foundation of Guizhou Aluminum Plant was taken as the object to conduct indoor drained triaxial consolidation creep test by means of step loading, and get the test data and curve. In virtue of Singh-Mitchell stress-strain-time empirical creep equation with the test data obtained, the creep forms of the clay on different stress conditions were concluded. This equation is of little parameters and good fitting to the test curve, thus expresses the creep characteristics of foundation red clay in Guiyang well.