露天采矿技术2025，Vol.40Issue(2)：1-6,6.DOI:10.13235/j.cnki.ltcm.20240346
隔水层控制型边坡失稳机理模拟研究
Simulation study of destabilization mechanism of water barrier controlled slopes
摘要
Abstract
In order to investigate the damage mechanism of the water barrier formed by mudstone on the north slope of Xianfeng Open-pit Coal Mine after the rainy season in the process of groundwater dynamics,the article establishes a slope mechanics model based on the research method of combining numbers and shapes,and deduces the damage theory of the mudstone water barrier under the action of water pressure,and carries out coupled simulation based on the real rainfall in Kunming City in 2023.The results show that after the rainy season,with the rainfall infiltration is blocked,the mudstone upper water accumulation leads to the increase of water pressure,the first plastic damage occurs,from the water insulation layer to the water conduction layer.However,the slope doesnot occur a large displacement and deformation,and still maintains a stable state.After entering into the month of January,the groundwater level continues to rise,the upper water pressure of the mudstone water insulation layer reaches the limiting value,and the plastic damage occurs,resulting in the conductivity of the water,and then occur in a large range of plastic deformation,the north slope occurs landslide disaster with mudstone as the sliding surface.关键词
露天矿边坡/隔水层/流固耦合/FLAC3D/数值模拟Key words
open-pit mine slope/water barrier/fluid-structure interaction/FLAC3D/numerical simulation分类
矿山工程引用本文复制引用
赵梦令,王胆,尚国安,邢克兵,肖建雄,李元浩..隔水层控制型边坡失稳机理模拟研究[J].露天采矿技术,2025,40(2):1-6,6.基金项目
国家重点研发计划资助项目(2024YFC3013904) （2024YFC3013904）
