摘要
提出强降雨下受污染土体滑坡对地质累计污染的影响分析方法,利用暴雨强度指标确定土体滑坡的几率,确定土体滑坡堆积范围。通过瑞典圆弧滑动法计算强降雨条件下受污染土质边坡的安全系数,对比计算得到的安全系数与容许安全系数,根据对比结果判断强降雨条件下受污染土质边坡的安全性。通过地质积累指数分析强降雨下受污染土体滑坡对地质累计污染的影响。实验结果表明,所提方法可准确计算得到强降雨下受污染土体滑坡的安全系数,精准的划分地质累计污染等级。
The analysis method of the impact of contaminated soil landslide on geological accumulation pollution under heavy rainfall is proposed.The rainstorm intensity index is used to determine the probability of soil landslide and the landslide accumulation range is determined.The safety factor of the contaminated soil slope under heavy rainfall conditions is calculated by Swedish arc sliding method.The safety factor and the allowable safety factor are compared and the safety of the contaminated soil slope under heavy rainfall conditions is judged according to the comparison results.The geological accumulation index is used to analyze the impact of contaminated soil landslides on geological accumulation pollution under heavy rainfall.The experimental results show that the proposed method can accurately calculate the safety factor of the landslide in the contaminated soil under heavy rainfall,and accurately divide the geological cumulative pollution level.
作者
唐书君
Tang Shujun(Qinghai Bureau of Environmental Geology Exploration,Xining 810000,China)
出处
《环境科学与管理》
CAS
2019年第6期159-163,共5页
Environmental Science and Management
关键词
强降雨
受污染土体
滑坡
地质累计污染
heavy rainfall
contaminated soil
landslide
geological accumulation pollution
