摘要
为了保证矿井生产衔接,利用回采工作面巷道使用定向钻机对下一个工作面提前进行整体的区域性预抽,待需要掘进巷道时已完成对工作面的预抽工作,一次性达到掘进和综采的防突要求。针对煤与瓦斯突出问题采取相应措施后,综采工作面瓦斯均能达到有效排放。所采取措施均由钻机施工,无需开设瓦斯治理巷道,节约了时间和成本,而且抽放的瓦斯可以作为新能源利用。
In order to ensure the linking up of the mine production, by coal mining face roadway using direction-al drilling on the next working face advance the whole regional forepumping. Until tunneling when the roadway nee-ded, forepumping has been completed in the face. Achieved outburst prevention requirements of excavation and fully mechanized mining for one time merely. According to coal and gas outburst problem take corresponding measures, the gas of fully mechanized working faeeall can achieve effective emission. All taken measures are implemented by the drill, without tunneling the gas roadway, save the time and cost, and the gas of drainage can be used as a new energy utilization.
出处
《山西焦煤科技》
2012年第11期28-30,共3页
Shanxi Coking Coal Science & Technology
关键词
抽放模型定向顺层钻孔裂隙带
Gas drainage model
Directional borehole drilling along seam
Fracture zone
