Landslides are frequent in the Nanpeng River fault zone in southwest Yunnan. Based on a Zhen Qing Expressway survey, the geological conditions and characteristics of landslides in this area were studied. The conclusions are as follows: 1) the geological background was the internal cause of local highly steep slopes and broken rock masses. The main landslide types in study area are fault-type and accumulation landslides. 2) The formation of fault-type landslides is related to endogenous causes, such as tectonic movements, but they are less easily triggered than accumulation landslides. Accumulation landslides are related to broken rock masses and are sensitive to external factors such as rainfall and artificial unloading. 3) The coordinated control of permanent support engineering, local deformation control, and overall support reinforcement should be considered as preventive measures.

中文翻译：

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典型断裂带滑坡形成机制及防护对策——以南彭江断裂带为例

滇西南南彭江断裂带滑坡灾害频发。基于镇庆高速公路勘察，对该区滑坡地质条件及滑坡特征进行了研究。结论如下：1）地质背景是局部高陡边坡和岩体破碎的内因。研究区滑坡类型主要为断层型和堆积型滑坡。2）断层型滑坡的形成与构造运动等内生原因有关，但与堆积型滑坡相比不易触发。堆积性滑坡与破碎岩体有关，对降雨、人工卸荷等外界因素敏感。3）永久支护工程、局部变形控制的协调控制，