论文标题
通过平行渐变方法估算具有高罚款含量的粗土的剪切强度
Estimation of the shear strength of a coarse soil with high fines content by parallel gradation method
论文作者
论文摘要
确定包含大于标准实验室设备允许尺寸的土壤的机械性能是复杂的。确实有必要删除最粗糙的部分以进行测试。这种剥布会在结构规模上提出结果的可靠性。平行级别是通常用于估算从其细分分数的测试中估算异质颗粒土壤的剪切强度的方法。但是，高罚款含量对通过这种方法估计剪切强度的影响尚不清楚。这项研究的结果表明，当建模的土壤具有与初始土壤相似的骨架时，平行渐变方法可以预测具有高罚款含量的初始土壤的摩擦角。但是，初始土壤的内聚力被高估了。
The determination of the mechanical properties of soils containing particles larger than the allowable size of standard laboratory equipments is complex. It is indeed necessary to remove the coarsest fraction to carry out the tests. This scalping poses a problem of reliability of the results at the scale of the structure. Parallel gradation is the method commonly used for estimating the shear strength of heterogeneous granular soils from tests on their finer fraction. However, the effect of high fines content on the estimation of shear strength by this method is not well understood. The results of this study showed that the parallel gradation method could predict the friction angle of the initial soil with high fines content when the modelled soil had a similar skeleton as the initial soil. However, the cohesion of the initial soil was overestimated.
