Determination And Economic Value Analysis Of A Metal Mine Slope Protecting Column In Guizhou

mining,the mining boundary can be met,if the protection of the column width is improper,in the case of mining subsidence,the possibility of causing ground fissures,ground subsidence,and other geological disasters,such as industrial sites,residents.In order to better study the problem in this field,the stability of different protection width is studied by using finite difference method FLAC3D numerical simulation software.The main contents are as follows:(1)Analysis of the stress and strain state of the impact on the mining,the failure mechanism of the landslide is studied and the factors which influence the stability of the slope are classified and introduced.(2)The calculation model of the surface deformation and additional stress on the exploitation.In combination with the actual situation of the mining area,the stability of the typical section is predicted,and the most unfavorable position is found by comparing the stability coefficient.(3)Flac3D is used to establish the most unfavorable position of the mining area.Through simulating the stability of the column width,the width of the protective column is optimized.The mining boundary can be ensured to ensure the stability of the slope.(4)Analysis of the economic benefits generated by optimizing the guard column,and also the small machinery of mining boundary sporadic block seam mining,economic value analysis of the maximum of resources exploitation,to achieve maximum benefits.