露天采矿技术2024，Vol.39Issue(4)：5-10,6.DOI:10.13235/j.cnki.ltcm.2024.04.002
不同预警模型下的露天矿滑坡时间预测研究
Research on landslide time prediction in open-pit mine under different early warning models
摘要
Abstract
The slope of open-pit mine is affected by gravity,the internal stress balance is destroyed,and induced by external factors such as rainfall,earthquake and artificial mining activities,so that geological disasters such as landslide,slope and collapse occur.Because of the suddenness,disaster and unpredictability,it seriously restricts people's life and property safety.The inverse velocity model(INV model),slope model(SLO model)and logarithmic prediction model(Lgt)based on the three-stage theory of creep deformation are widely used in landslide time prediction because of their simplicity,convenience and operability.The basic principle of three prediction models are analyzed,and the methods of obtaining onset of acceleration(OOA)at the acceleration stage of creep curve are analyzed.The application of different prediction models in landslide time prediction is studied by combining three landslide cases.The results show that all the three prediction models can effectively predict the occurrence time of landslide,and the slope model and the logarithmic function model are more effective in the correlation coefficient of curve fitting and the accuracy of prediction time.关键词
预警模型/滑坡灾害/监测预警/时间预测/加速变形点Key words
early warning model/landslide disaster/monitoring and early warning/time prediction/onset of acceleration分类
矿业与冶金引用本文复制引用
李千慧..不同预警模型下的露天矿滑坡时间预测研究[J].露天采矿技术,2024,39(4):5-10,6.基金项目
国家重点研发计划(2021YFC3001901) （2021YFC3001901）
