台灣位在環太平洋火山地震帶，且為山多平原少的地方可能會使得 岩坡發生規模大小不一之滑動或破壞，又因為極端氣候發生之頻率愈來 愈高，岩石邊坡若受到豪雨、地震、河流沖刷等自然因素或是人為因素開 發的影響，造成鄰近聚落居民的生命財產損失。岩石邊坡之破壞案例，大 多受到極端降雨、地震等外在因素，或是坡體內部力學性質等內在因素之 影響，由破壞案例亦可以得知，岩石邊坡產生滑動之機制，可能也與岩坡 之種類以及其尺寸或內在、外在邊界條件有關。 本研究根據不同的文獻及現地探勘資料，調整出適合室內實驗的 模型。選擇幾項最典型的逆向坡災害，如翻覆、內部褶皺及楔型滑動，利 用PFC3D 建構模型並調整成符合室內試驗之結果，並且探討內部的不同 影響因子（組成、解壓階數及角度等），討論弱面在不同幾何分布及環境 影響下，滑動塊體之形成與邊坡破壞行為 ，進而應用至實際案例上。;Taiwan is an island where located at the Circum-Pacific Seismic Zone. These may be attributed to the main reasons that have formed Taiwan as a mountainous country with complicated geological conditions, where the mountain plains are less likely to cause the rock slope to slip or destroy. If the rock slope by the heavy rain, earthquakes, river erosion and other natural factors or the impact of human factors development, resulting in the settlement of residents living and property losses. It is also possible to know from the case of damage that the rock slope sliding mechanism, which may also be related to species, size or internal, external boundary conditions. In this study, according to different literature and the current survey data, adjust the model for the physical model test . Choose several of the most typical anti-dip slope disaster, using the PFC3D model to adjust the same conditions for the physical test, and explore the internal impact of different factors. Discuss the formation of sliding blocks and the behavior of slope damage under different environmental influences, and then apply to the actual case.
