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Underground Mine Design and Stability Analysis at a Limestone Mine  

Koo, Chung-Mo (대한광업진흥공사 자원개발2본부 유통사업팀)
Jeon, Seok-Won (서울대학교 에너지시스템공학부)
Lee, In-Woo (대한광업진흥공사 자원개발2본부 탐사지원팀)
Publication Information
Tunnel and Underground Space / v.18, no.4, 2008 , pp. 243-251 More about this Journal
Abstract
Recently, the mining methods are changing from surface mining to underground mining because of the increment of the environmental issues and legal regulations. Therefore, the stability of underground openings is a major concern for the safety and productivity of mining operations. In this paper, a survey of structural geology and discontinuities were carried out at a limestone mine. The relevant mechanical properties of rocks were determined by the laboratory tests and rock mass classifications (RMR and Q-system) for the mine design and input data for the stability analysis. The dimensions of unsupported span for underground openings and pillar were decided based on the RMR values of rock mass classifications. The stability analysis for the suggested mine design was examined through the empirical methods (stability graph method and critical span curve) and 3-D numerical analysis (Visual-FEA).
Keywords
Surface mining; Underground mining; Stability graph; Critical span curve; Numerical analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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