黄河大堤非饱和土抗剪强度特性试验研究

Research on Experiment of Unsaturated Soil's Shear Strength of Yel low River

利用特制的非饱和土三轴仪,进行非饱和土抗剪强度试验,绘制非饱和土不同初始含水量下的应力应变关系曲线及抗剪强度包线,得出含水量与总凝聚力的关系,并比较不同含水量下非饱和土的抗剪强度,拟合两者之间的函数,导出非饱和土的抗剪强度公式。

With the special unsaturated soil triaxial apparatus to test the shear strength, then get the unsaturated soil curves under different moisture contents and the shear strength envelopes. According to the relationship of moisture content and total cohesion, we compare the unsaturated soil shear strength under different moisture contents, and imitate the function to get the unsaturated soil shear strength formula.