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根据静态松弛快速拉格朗日分析方法（Ｓ－ＦＬＡＣ），提出了一种求解岩体界面的新方法即广义界面单元方法。该方法可真实模拟界面的各种复杂变形。推导了相应公式，并给出了两个典型算例。
According to the static relaxation fast Lagrangian analysis (S-FLAC), a new method for solving the interface of rock mass, ie generalized interface element, is proposed. This method can truly simulate various complex deformations of the interface. The corresponding formulas are derived and two typical examples are given.