两河口水电站雅砻江主库区滑坡发育规律  

Development regularity of landslides in Yalong River reservoir area of Lianghekou hydropower station

作　　者：沈军辉[1] 巩满福[2] 廖明亮[2] 胡跃飞[2] 张进林[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家专业实验室,成都610059 [2]中国水电顾问集团成都勘测设计研究院,成都610072

出　　处：《水文地质工程地质》2007年第4期6-9,共4页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金资助项目(40372136)

摘　　要：两河口水电站雅砻江主库区滑坡的形成与地层岩性、斜坡地质结构、河谷地貌特征密切相关,滑坡主要发生于板岩及板岩与中薄层状砂岩互层的中陡—陡倾反向层状结构斜坡和板岩陡倾顺向层状结构斜坡中,且多发生于峡谷凹岸及三面临空的脊状山体一侧。滑坡变形破坏方式主要为弯曲—拉裂型。Formation of the landslides in the Yalong related to stratum lithology, slope geological structure River reservoir area of Lianghekou hydropower station was and valley physiognomy. In the reservoir area, most of the large scale landslides occurred in the slopes which have mid-steep inverse laminar structure made up of slate or slate and mid-thin layer sandstone interbedded and steep consequent structure made up of slate. On physiognomy, the landslides mainly occurred in the concave bank in valleys and some mountain ridges with three directions free face. The main mode of slope failure is bend - rip failure.

关 键 词：雅砻江主库区 滑坡 发育规律 弯曲一拉裂机制 

分 类 号：P642.22[天文地球—工程地质学]