铁新煤业9301工作面切顶卸压无煤柱自成巷技术实践

Technology practice of self-forming roadway with cut-off pressure and no coal pillar in 9301 face of Tiexin industry

铁新煤矿自身煤层赋存条件确定在9301工作面进行"110"工法的实践应用。本文对9301运输巷切顶卸压关键:加强支护措施、预裂切缝参数等进行了介绍,结合现场应用情况对切顶施工工艺进行了优化,成巷效果良好,实现了工作面安全高效回采。

The occurrence condition of self-coal seam in iron-new coal mine determines the practical application of"110"engineering method in 9301 working face.In this paper,the key of unloading pressure of 9301 transportation roadway:Strengthening supporting measures,pre-splitting slit parameters and so on,combining with the field application,the cutting-top construction technology is optimized,the roadway effect is good,and the working face is safely and efficiently stoping.