压实坡积土的应力应变关系三维曲面初步研究

Three-dimensional Curve of Stress-strain Relationship of the Compacted Slope-wash-soil

对两组不同含水量的压实坡积土样进行三轴CD试验,利用试验得到的ε1～q曲线以及体应变εv、剪应变εr、平均正应力p和广义剪应力q等数据,通过神经网络反演,并采用可视化处理技术,得到试样的部分应力应变关系三维曲面,为三维数值建模研究创造条件。

The consolidation-drained tri-axial tests of two water content of compacted slope-wash-soil samples were carried out,and the stress（q）-strain（ε1） curves and related data such as cubic strain（εv）,shear strain（εr）,average normal stress（p）,generalized shear stree（q） etc.were obtained.Then by the neural network inversion and visualization technology,three dimension surfaces of stress-strain relationship are plotted in part,which create the condition for study on the three dimension numerical model.