DOI: 10.11799/ce201603004
Application of steep end slope mining technology for Haerwusu open-pit coal mine
ZHOU Yong-li
LUO Huai-ting
Abstract：To explore the prospect of steep mining technology in Haerwusu open-pit coal mine, the technologies are compared in views of economy and technique. The social and economic meaning of application of steep mining technology is revealed according to the timeliness slope theory. And the exposed area and exposure time are calculated with the working parameters. Based on limit equilibrium and finite element analysis, the stabilities of typical profiles in the southern end slope are obtained through FLAC and GEO-slope simulation. The result illustrates that, with the application of the third program, the surface mine can gain 0?89 million tons of residual coal and create the economic benefit of 204?7 million yuan, through limiting the width of bench on Level 1025m to15m.
Keywords：steep slope miningopen-pit coal mineend slopestabilitytimeliness slope theory
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 11-14 )