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四川省大渡河瀑布沟水电站工程区建设用地地质灾害危险性评估报告国家电力公司成都勘测设计研究院西南交通大学2003年6月审定：杨建宏审查：陈卫东尹显科校核：尹显科胡卸文编写：胡卸文吕小平张友谊朱海勇陈光主要参加人员：胡卸文吕小平张友谊朱海勇陈光郑永翔邵树强王飞杨建荣尹显科吉云周云金向贤友张运达沙玉目录1前言..........................................................................................................................................11.1评估依据..........................................................................................................................21.2征地情况及评估范围......................................................................................................21.3建设项目类型与评估级别确定......................................................................................21.4评估工作概况..................................................................................................................32地质环境条件..........................................................................................................................62.1气象、水文......................................................................................................................62.2区域地质..........................................................................................................................62.3地震..................................................................................................................................92.4水库基本地质条件........................................................................................................102.5枢纽区基本地质条件....................................................................................................112.5.1地形地貌...............................................................................................................112.5.2地层岩性...............................................................................................................122.5.3地质构造...............................................................................................................142.5.4物理地质现象.......................................................................................................152.5.5水文地质...............................................................................................................162.6人类工程活动对地质环境的影响................................................................................173地质灾害危险性现状评估....................................................................................................173.1地质灾害危险性评估标准............................................................................................173.2枢纽建筑区地质灾害类型、发育特征及危险性现状评估.........................................183.2.1古拉裂变形体发育特征及危险性现状评估.......................................................183.2.2上游桥变形体发育特征及危险性现状评估.......................................................213.2.3崩塌变形体发育特征及危险性现状评估...........................................................233.2.4泥石流发育特征及危险性现状评估...................................................................243.3建材开挖区地质灾害类型、发育特征及危险性现状评估.........................................243.3.1黑马料场....................