滇东北地区地质灾害及其对公路工程影响研究——以某拟建公路沿线地质灾害为例

Study of geological hazards and it's effect to road associated with a planned road in northeast of Yunnan

以滇东北地区某拟建公路沿线的地质灾害为例 ,分析研究该地区地质灾害的影响因素、影响机制、分布规律以及对公路工程的影响。区内地质灾害的发育受地层岩性、岩体结构、地质构造、地震、水文条件、气候条件、人类活动等因素的控制和影响。地质灾害类型主要有崩滑塌、滑坡、泥石流、岩溶塌陷等 ,另外还存在软土、膨胀土及可液化的砂土等特殊岩土灾害。

In this Paper the authors studied the geological hazard's type ,feature and distribution law associated with a planned road in northeast of Yunnan, analyzed their influenced factors and mechanisms. The development of geological hazards were influenced by strata's lithology, rock-texture, geological structure, earthquake, hydrology, climate, human engineering activity and so on. In the study area geological hazards mostly are rockfall,landslide, mud-rock flow, karst and ground collapse, in addition, soft clay, expensive soil and sand liquefaction distribute in the area. The different geological hazards destroy and influence the road in the different mechanism.