工程地质学报Issue(6)：1204-1210,7.DOI:10.13544/j.cnki.jeg.2014.06.026
地形坡度对鄂渝地区水库型堆积层滑坡贡献率研究
CONTRIBUTION RATE OF SLOPE GRADIENT TO DEBRIS LANDSLIDE IN RESERVOIR REGION OF HUBEI AND CHONGQING REGIONS
摘要
Abstract
Debris landslide is one of the most common types of landslides in reservoir region.Slope gradient is an important internal cause of the development of landslides.The relation between slope gradient and probability of occurrence of debris landslide in reservoir region has important significance to debris landslide risk assessment in reservoir region.This paper takes 1 39 debris landslides in the Three Gorges Reservoir region and Danjiangkou Reservoir region as example.Firstly,it divides the slope gradient into 7 intervals.Each adjoining 5°is an interval. Based on above,the influence that slope gradient contributes to landslide growth is quantitatively analyzed by contribution rate method.The results show that,the slope gradients of 1 5°~25°have the maximum contribution rate.The slope gradients of 1 0°~1 5°and 25°~30°have the intermediate contribution rate.The slope gradients greater than 30°and less than 1 0°have the minimal contribution rate.The results can provide potential gist to risk evaluation for debris landslide in reservoir region.关键词
堆积层滑坡/水库/坡度/贡献率Key words
Debris landslide/Reservoir region/Slope gradient/Contribution rate分类
建筑与水利引用本文复制引用
王章琼,晏鄂川,王鲁男,朱大鹏..地形坡度对鄂渝地区水库型堆积层滑坡贡献率研究[J].工程地质学报,2014,(6):1204-1210,7.基金项目
国家重点基础研究发展计划（“973”计划）项目（2011 CB710605）资助． （）
