本文通过加筋砂土和纯砂的三轴对比实验结果,研究了加筋砂土的抗剪强度特性。结果表明:在砂土中埋设抗拉强度较高的筋条后,会大幅度地提高其内摩擦角,但并不会使砂土产生额外的粘聚力;会使无软化特性的纯砂本构关系,变成具有明显软化特性的加筋土本构关系。 In this paper, the shear strength characteristics of reinforced sands are studied by comparing the results of triaxial comparison tests between reinforced sand and pure sand. The results show that: After ribs with high tensile strength are embedded in sand, the internal friction angle will be greatly increased, but the sand will not produce additional cohesion; it will make pure sand without softening properties. The constitutive relationship becomes a reinforced soil constitutive relation with obvious softening properties.