冲击地压矿井采煤工作面双连巷布置设计

Double-connecting roadway arrangement in mining face of rockburst coal mine

针对传统"双巷布置"方式易在深部矿井中诱发冲击地压等动力灾害问题,通过总结分析现有冲击地压采煤工作面巷道布置方式的优缺点,建立了双联巷的概念和布置方式,提出了在冲击地压矿井采煤工作面应用双连巷的技术构想。并通过建立工作面回采前后双连巷顶板结构力学模型,得出双连巷顶板稳定性与双连巷跨度的关系和中隔墙支护阻力与其宽度的关系。研究结果表明,冲击地压矿井采煤工作面采用双连巷布置,既解决了双巷的难题又实现了双巷的功能,可为冲击地压矿井采煤工作面设计提供参考。

Aiming at the traditional double-lane layout is prone to induce dynamic disasters such as rockburst in deep mine,this paper summarizes and analyzes the advantages and disadvantages of the existing roadway layout methods for rockburst coal mining face,establishes the concept and layout of double-connecting roadway,and proposes the technical idea of applying the double-connecting roadway to the coal mining face of the rockburst mine is proposed. By establishing the mechanical structure model of the roof of the double-connecting roadway before and after mining,the relationship between the stability of the double-connecting roadway and its span and the relationship between the resistance of the partition wall support and its width are obtained. The double-connecting roadway not only solves the problem of double-lane layout but also realizes the function of double-lane layout,which can provide a reference for the design of coal mining working face in rockburst mines.