摘要
为了改善金辛达煤业的采掘接续紧张以及应力集中现象显著的现状,以及解决薄煤层沿空留巷围岩变形严重的问题,在分析金辛达煤业201工作面地质概况的基础上,将更优良的聚能预裂切缝技术应用到了金辛达煤矿中201工作面顺槽切顶卸压施工工艺中,并对实验结果进行效果评价,验证了此设计方案的可行性及经济性,有效提高了煤炭回收率。
In order to solve the current situation of tight mining continuity and significant stress concentration in Jinxinda Coal Industry,and the problem of serious deformation of surrounding rock in thin coal seam gob-side entry retaining.On the basis of analyzing the geological overview of the 201 working face of Jinxinda Coal Mine,the better energy-gathering pre-splitting cutting technology was applied to the construction technology of the 201 working face along the groove in the Jinxinda Coal Mine,and the experimental results were compared.The effect evaluation is carried out to verify the feasibility and economy of this design scheme,which can effectively improve coal recovery.
作者
张晓雄
Zhang Xiaoxiong(Shanxi Coal Transportation and Marketing Group Jinxinda Coal Industry Co.,Ltd.,Linfen Shanxi 041000,China)
出处
《山西冶金》
CAS
2023年第8期222-224,共3页
Shanxi Metallurgy
关键词
能源结构
切顶卸压
沿空留巷
聚能预裂切缝
回收率
energy structure
roof cutting and pressure relief
gob-side entry retention
energy-forming pre-split slits
recovery rate
