高瓦斯薄煤层沿空留巷Y型通风技术研究

Study on Y Type Ventilation Technology of Gob-side Entry Retaining with High Gas and Thin Coal Seam

为实现无煤柱开采,提高回采率,实现连续开采,从根本上解决上隅角瓦斯超限问题,针对沙曲矿北翼2#煤层瓦斯高煤层薄的地质状况,在2#煤层首采22201工作面进行了沿空留巷Y型通风技术研究。通过理论分析,确定了22201工作面的巷道布置、支护方式和通风方式,设计了沿空留巷充填系统,在22201工作面实现了沿空留巷Y型通风系统,也为其它类似条件下沿空留巷Y型通风的研究提供了借鉴。

For achieving without coal pillar mining,improving the recovery rate and realizing a continuous mining,fundamentally solve the upper corner gas overrunning problem,according to the geological condition of high gas and thin coal seam in the north of No.2 coal of Shaqu coal mine,carries out study of the Y type ventilation technology of gob-side entry retaining in the first 22201 working face of No.2 coal seam.Through theoretical analysis,determine the roadway layout of 22201 working face,supporting way and ventilation way,and design the filling system of gob-side entry retaining.Also can provide the reference for the study of Y type ventilation of other similar conditions gob-side entry retaining.