During the course of numerical computation and stability evaluation on the jointed rock masses engineering, the determination of strength parameters is very important. 摘要在節理岩體工程的數值計算及穩定性評價中，強度參數的確定至關重要。
Fast lagrangian analysis of continua method was employed to simulate the distribution of internal stress, the change of displacement and the course of slope instability. 而強度折減法對開挖前後邊坡的穩定性評價結果也表明路塹開挖是該邊坡失穩的主要原因。
