CURRENT STATUS AND PROSPECTS OF STUDIES ON MECHANISM OF LANDSLIDE GEOHAZARDS INDUCED BY UNDERGROUND MINING

Landslide geohazards induced by underground mining in mountainous areas have caused a serious influence to human activities.Aimed at the mechanism of underground mining-induced landslides,typical work and researches over the past several decades at home and abroad are analysed in this paper.Previous investigations can be summarized into three parts: field monitoring,physical modelling and numerical modelling.The findings are: 1)there is no clear understanding about the patterns of rock mass moving induced by underground mining.Underground mining activity is believed just one of the factors influencing the slope stability.The impacts of different aspects such as the mining method and goaf management technique resulted in the ignorance of underground mining effect.2)in-situ monitoring: most of the data is the deformation of the ground surface.There are no corresponding records about the relationship between the undermining process and rock mass movement; 3)Based on the assumptions of the geological background,constitution relationship,and other parameters,modelling researches are always excessively simplified,and the conclusions are primary and simple.This paper puts forward that further studies will focus on the detailed analysis of underground mining effect,monitor the underground mining process and rock mass deformation,and build the large-scale three dimension numerical model that can reflect geological condition better.