沿空留巷在解放层工作面瓦斯治理中的应用

Application of Gob-side Entry Retaining in Gas control of Liberated Seam Face

根据羊东煤矿煤层赋存条件,提出了解放层首采面沿空留巷工艺;总结了沿空留巷期间采掘工作面以及掘进工作面与沿空留巷巷道贯通时的瓦斯治理措施。实践证明,对于节省巷道掘进工程量、提高煤炭资源回收率和解决上部大煤防突问题有着重要的现实意义。

According to the occurrence condition of coal seams of Yangdong coal mine, the gob-side entry retaining technology of the first lib-erated seam face is put forward. The gas control measures of working face and the holing between heading face and roadway of gob-side entryretaining is summarized. Practice has proved that it is of great significance in saving tunneling project amount, improving the recovery rate ofcoal resources and solving the outburst of the upper coal.