切顶留巷采矿法对煤矿应力变化的影响研究

The effect of the roof-cutting and stay-away mining method on stress changes in coal mines

传统的煤矿开采技术对环境破坏较大,煤矿开采效果较差,不能满足当今社会生产需要。对此,文章探究了新兴的采矿技术——切顶留巷采矿法的作业流程,并对作业条件下的煤矿应力变化进行了分析。研究结果表明,在长期采掘过程中,矿层偏移量小于15cm;对于环境的负面破坏较小,平均环境评分为86.2分。切顶留巷采矿法在开采过程中具有更高的安全性,能够为煤矿开采作业的安全性、环保性提供保障。

Traditional coal mining technology is more destructive to the environment,and the effect of coal mining is poor,which cannot meet the needs of today’s social production.In this regard,this paper explores the operation process of the emerging mining technology,the roof-cutting and stay-away mining method,and analyzes the stress changes in the coal mine under its operating conditions.The results of the study show that during the long-term mining process,the offset of the ore layer is less than 15cm,and the negative damage to the environment is small,with an average environmental score of 86.2 points.The top-cutting and roadway mining method has higher safety in the mining process,and can provide a guarantee for the safety and environmental protection of coal mining operations.