引言 如图1所示,在倾斜的沉积岩层中,边 坡可能沿沉积面和不连续面或软弱夹层滑动 而破坏。这种破坏模式可以称为“双线性” 破坏,因为破坏面是两个线性或近似线性的 平面。 这种类型的破坏称为加拿大阿尔白塔著 名的弗朗克滑坡(由Cruder and Krahn 在1973年提出)。在这次滑坡中大约90Mt (8.97×10~5MN)的岩石从泰特山滑下, 埋没了弗朗克镇。由于露天矿深度的增加以 及公路通道穿过倾斜岩层,这种破坏模式也 INTRODUCTION As shown in Figure 1, in sloping sedimentary formations, the slope may be damaged by sliding along sedimentary and discontinuous surfaces or weak interbeds. This failure mode can be called “bilinear” damage because the failure plane is two linear or approximately linear planes. This type of destruction is called the famous Franco Landslide in Albania, Canada (proposed by Cruder and Krahn in 1973). Approximately 90 Mt (8.97 × 10 ~ 5 MN) rock slipped off the Tate Hill and buried the town of Fraser in this landslide. Due to the increased depth of the open pit and the passage of the highway through the inclined rock formation, this mode of destruction is also