露天采矿技术2025，Vol.40Issue(2)：46-50,5.DOI:10.13235/j.cnki.ltcm.20240334
大理石矿山露天转地下过渡期衔接开采技术
Transition period connection mining technology from open-pit to underground in marble mines
田朋波1
作者信息
- 1. 中铁十九局集团矿业投资有限公司,北京 100161
- 折叠
摘要
Abstract
During the process of transitioning from open-pit to underground mining in marble mines,there are challenges such as effectively connecting the two mining methods,ensuring the stability and continuity of the mining process,and the difficulty of extracting boundary pillars.The article proposes a transition plan that preserves permanent boundary pillars to fully ensure the stability of underground ore body mining.Based on the characteristics of underground mining technology,the article proposes a step sawing type adit mining technology suitable for stone deposits.The safety and stability of underground mining in the first and middle sections and multiple sections are analyzed through numerical simulation.The article obtains that the stability of the mining site may decrease and instability damage may occur After the third section is mined.关键词
露天转地下开采/境界矿柱/数值模拟/过渡期衔接Key words
transition from open-pit to underground mining/boundary pillar/numerical simulation/transition period connection分类
矿业与冶金引用本文复制引用
田朋波..大理石矿山露天转地下过渡期衔接开采技术[J].露天采矿技术,2025,40(2):46-50,5.
