土的固结度对土的工程力学性质影响较大。对重塑软土进行了不同固结度的三轴试验。试验结果表明:重塑软土的抗剪强度随着固结度的增加而增加;其抗剪强度指标c变化很小,基本为定值;准随着固结度增加并非单调增加。对试验数据用邓肯-张模型进行拟合分析,拟合效果随着围压和固结度的增大而变差。
Soil consolidation has great influence on engineering mechanic properties of soil.Triaxial tests are performed on remolded soil of different consolidation degrees.The results show that the shear strength grows with the increase of consolidation degrees in remodeled soft soil.The internal cohesion of the shear strength parameters is nearly a constant value;the angle of internal friction increases with the consolidation degrees but it is not a simple linear increase.Duncan Chang model is used to analyze the experimental date,and the fitting effect becomes worse with the increase of confining pressure and consolidation degree.