摘要
针对三峡库区特殊的地质、水文环境,选取坡体结构(坡高、坡度、植被覆盖率)、岩土体特征(重度、粘聚力c、内摩擦角φ)、水文地质(地下水位比、日最大降雨量)、地震等关键因素建立了边坡的风险评价指标递阶结构。基于均衡函数与属性数学提出了三峡库区高陡边坡变权-属性风险辨识模型。该模型应用于三峡库区巫山县江东寺岸坡,属性测度辨识结果与实际情况较为吻合,验证了模型的合理性与可行性,具有一定的应用价值。
According to the special geological and hydrological conditions of Three Gorges Reservoir area, hierarchical structure of landslide risk indices was established by selecting 4 key factors, including slope body structure （slope height, gradient, vegetation coverage）, characteristics of rock and soil mass （ density, cohesion force, internal friction angle）, hydrogeology （underground water ratio, the maximum daily rainfall） . Based on variable weight and attribute mathematics, risk identification model of high and steep slope in Three Gorges Reservoir area is proposed. The rationality and feasibility of the model is verified by comparison with the realistic situation of the bank slope near Jiang-dong Temple in Wushan County.
出处
《三峡生态环境监测》
2017年第4期59-65,共7页
Ecology and Environmental Monitoring of Three Gorges
基金
重庆市教委科学技术研究项目(KJ1712304
KJ1601217)
长江师范学院校级项目(2016XJQN13)
关键词
三峡库区
高陡边坡
可变权重
属性模型
工程应用
Three Gorges Reservoir area
high and steep slope
variable weight
attribute model
engineering application
