对拉工作面沿空留巷技术分析

Gob Side Entry Retaining Technology in Double Unit Face

在煤矿井下开采时,采用对拉工作面布置方式能显著地提高开采效率。但是,这种布置方式带来了严重的采掘接替紧张问题。为此,在对拉工作面应用了沿空留巷技术。通过分析对拉工作面沿空留巷的特点,探讨了柔模混凝土支护技术在沿空留巷中的应用,可以为煤矿开采效率的提高提供一定的指导。

In the underground mining of coal mines,the use of double unit face arrangement can significantly improve the mining efficiency.However,this arrangement brings serious problem of mining and tunnelling replacement tension.For this reason,the gob-side entry retaining technology is applied in the double unit face.By analyzing the characteristics of the gob-side entry retaining in the double unit face,this paper discussed the application of the flexible formwork concrete support technology in the gob-side entry retaining,which can provide certain guidance for the improvement of coal mining efficiency.