锦屏级水电站坝址区雾化边坡稳定性分析  

STUDY ON STABILITY OF WATER-FOG SLOPE OF DAM SITE AT JINPING FIRST LEVEL HYDROPOWER PLANT

作　　者：周雄华[1] 沈军辉[1] 王兰生[1] 王小群[1] 

机构地区：[1]成都理工大学,成都610059

出　　处：《地质灾害与环境保护》2004年第1期65-69,共5页Journal of Geological Hazards and Environment Preservation

摘　　要：　详细介绍了锦屏水电站坝址区岸坡的地质结构特征和变形破坏模式,以雾化雨诱发边坡失稳的机理为基础,结合泄洪雾化区的雾化量级、范围,采用定性和定量方法重点分析了位于雾化区范围内边坡的稳定性状况,按岸坡稳定程度将雾化区分为6个区,提出了雾化区边坡可能的失稳模式。结果表明,两大规模变形破裂体所在的D、E区边坡在水库泄洪雾化的条件下稳定性较差且对工程施工的危害大。针对各区雨雾边坡的失稳模式和稳定性状况提出了相应的工程处理措施,为工程设计和施工提供了科学依据。This paper particularly introduces the geological structure characteristics and deformation failure modes of the dam site slope at Jinping first level hydropower plant, based on the theory of landside induced by atomization rain and combined with fog magnitude and extent of atomization region during the process of flood discharge, and analyses the stability status of these slopes in atomization region with quantitative and qualitative method. Based on the stability, the atomization region is divided into six sub-regions. A possible deformation failure mode is presented in this paper. It is proved that the stability of the slopes in D and E sub-regions, where there are two deformation fractures, is relatively bad on the condition of atomization rain by flood discharge. Based on these, this paper provides treatment measures and scientific evidences for the engineering design and construction of each sub-region respectively.

关 键 词：地质结构 变形破坏模式 变形破裂体 泄洪雾化 处理措施 

分 类 号：TV742[水利工程—水利水电工程] TV861