摘要
通过对已蓄水运行的三峡、二滩、宝珠寺、大朝山、漫湾、天生桥一级和紫坪铺7个山区河道型水库实际塌岸的现场调查和室内分析,提出冲磨蚀型、崩(坍)塌型、滑移型和流土型4种塌岸模式,描述了各塌岸模式的发生条件及特点。在计算各水库塌岸岸坡结构和塌岸模式分布概率的基础上,分析塌岸的影响因素。结果显示,山区河道型水库塌岸主要发育于残坡积层中,塌岸模式以崩塌型和滑移型为主。
Based on the field surveys and laboratory analysises on seven mountain river reservoirs of the Three Gorges, Ertan, Baozhusi, Dachaoshan, Manwan, Tianshenqiao Yiji and Zipinpu, four types of bank failure are identified as erosion, collapse, slide and flow. Their causes and characteristics are explored and the type and structure distribution probabililyis calculated a mong the seven reservoirs. It is revealed that bank failure in a mountain-river reservior occurs mainly in the form of collapse and slide and at a residual slope.
出处
《地质灾害与环境保护》
2011年第1期63-66,共4页
Journal of Geological Hazards and Environment Preservation
关键词
山区河道型水库
塌岸模式
影响因素
分布规律
Mountain river reservoir
Bank failure type
Causes
Distribution pattern
