摘要
基于现有露天矿矿权界划分方式下,存在相邻露天矿独立开采边帮压煤时,难以回采的技术经济问题,为了提高煤炭资源采出率、降低成本,提出了包括贯通采场、排土场,构筑采场至排土场临时运输排土桥,技术参数优化及工程位置协调控制措施在内的相邻露天矿境界重叠区边帮压煤协调开采关键技术。结果表明:相邻露天矿采用联合协调开采技术,不仅可经济合理地回采境界重叠区边帮压煤、提高煤炭资源的采出率,而且可有效减少二次剥离量、合理利用排土空间、减少外排土场征地、缩短运距,效益显著。
Based on the existing mine field boundary demarcated mode,there is a widespread technical economic problem, which it is diffi cult to stope coal under the side slopes of two adjacent open pits when they excavate independently.To enhance the recovery rate of coal re sources, reduce the cost of production, the authors proposed the pivotal coordination mining technology of coal under side slopes in crossed limit area of two adjacent open pits includel stopes transfixing stopes and waste dumps, building temporary transportation bridges between stope and waste dump, optimizing technical parameter and coordinately controlling engineering positions.The results showed that by adop ting joint coordinating mining technology, the two open pits not only stoped the coal under the side slopes in crossed limit area of two adja cent open pits reasonably and enhanced the recovery rate of coal resources, but also reduced the repetitive stripping effectively, utilized the dump space legitimately, reduced the waste dump land acquisition and short haul distances.In a word, the benefit is remarkable.
出处
《煤炭科学技术》
CAS
北大核心
2013年第9期91-95,共5页
Coal Science and Technology
基金
辽宁省教育厅科学研究基金资助项目(L2011051)
关键词
露天矿
边帮压煤
协调开采
临时排土桥
open pit
coal under side slopes
coordination mining
temporary transportation bridge
