本文探讨了岩石坝基坝肩扰滑稳定的两个主要问题:抗剪强度参数的选择和安全系数的确定。对目前设计中较多应用的摩擦公式提出了一些看法,认为按该公式计算坝基坝肩稳定偏于不安全。另外,论证了二维裂隙比对安全系数的影响,并论述了岩石和结构面的几个基本力学特性。 This paper discusses two main problems of stabilization of disturbed slippage in the dam foundation of a rock foundation: selection of shear strength parameters and determination of safety factor. The author puts forward some opinions on the friction formulas used in the current design, and believes that the calculation of dam foundation dam shoulders according to this formula is somewhat unsafe. In addition, the effect of two-dimensional crack ratio security factor is demonstrated, and several basic mechanical properties of rock and structural plane are discussed.