本文讨论了泥化夹层抗剪强度的影响因素,并且介绍了作者关于长江葛洲坝水利枢纽泥化夹层的研究成果。成果表明:红层地区,粘土矿物成分类型常为混合型,在粘土矿物组成类似的条件下,粘粒含量是影响泥化夹层抗剪强度的重要因素,二者之间有着良好的相关关系,即随着粘粒含量的增加,抗剪强度明显降低,本文还提供了粘粒含量与残余强度、屈服强度和峰值强度的相关曲线。 In this paper, the influencing factors of shearing strength of clay interbed are discussed, and the author’s research results on mud intercalation of Gezhouba Hydro Project are introduced. The results show that the composition types of clay minerals in the red beds are often mixed type. Under the condition of similar clay mineral composition, the clay content is an important factor affecting the shear strength of clay interlayers. There is a good correlation between the two, That is, with the increase of clay content, the shear strength is obviously reduced. The correlation curve between clay content and residual strength, yield strength and peak strength is also provided in this paper.