对各向异性土体的强度条件研究建立一种新的表述方法。借鉴复合材料力学中矩阵转换的数学方法,将各向异性砂样的柔度矩阵(或刚度矩阵)转化为各向同性等效参考砂的柔度矩阵(或刚度矩阵),同时导出与其相当的应力状态的表达式,以使对各向异性岩土材料的分析可转换为对各向同性状态进行分析,由此可将以前基于各向同性假设的强度条件能够用于各向异性土体。将计算结果与已有实验结果作了比较,发现两者具有较好的一致性。 On the anisotropic soil strength conditions to establish a new method of expression. The mathematic method of matrix transformation in composite mechanics is used to transform the flexibility matrix (or stiffness matrix) of anisotropic sand sample into the flexibility matrix (or stiffness matrix) of isotropic equivalent reference sand and to derive the equivalent The expression of the stress state, so that the analysis of the anisotropic geomaterials can be switched to the analysis of the isotropic state, whereby the intensity conditions previously based on the isotropic assumption can be applied to anisotropic soils. Comparing the calculation results with the existing experimental results, we find that the two have good consistency.