Optimization of slope shape of external dump in open-pit mine of Thar Coalfield Block Ⅱ
LI Chengsheng
Abstract：In order to solve the problem of slope shape optimization of external dump in open-pit coal mine,based on the theory of horizontal shape optimization,the article puts forward a method of slope shape optimization of external dump.Taking the external dump slope of open-pit mine of Thar Coalfield Block II as the engineering background,the article analyzes the stability of each slope of the original designed dump using rigid body limit equilibrium method and numerical simulation technology,and optimizes the shape of each slope.The article analyzes the economic benefits brought by the shape optimization of the external dump.The results show that the width of the horizontal design plate of each slope of the external dump is 25 m and the width of the horizontal design is 20 m.The external dump of the new design parameters can hold more 9.16 Mm3 than the original design parameters,which can maximize the holding capacity of the dump on the premise of ensuring safety.
Keywords：external dumpslope stabilityoptimization of shaperigid body limit equilibriumnumerical simulation
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 76-79 )