浅析2906综放工作面的突出危险性

Simple analysis on the danger of gas outbust in the 2906 fully mechanized caving mining face

2906工作面采前进行本煤层密集钻孔预抽,基本上消除了工作面的突出危险性;在生产过程中,采用边采边抽和浅孔中压注水措施,完全消除了工作面的突出危险性。这说明:只要采前抽放好,生产期间措施得力,突出煤层采用综放工艺是完全可行的。

It used intensive hole stripping to predrainage gas before mining in the 2906 mining face, which basically avoided coal and gas outburst in front of the face. It used draining while mining and light&middle pressure water injection in coal seam ,those completely eliminated the danger of coal and gas outburst.In a word ,it is feasible that the fully mechanized caving technology uesd in the gas outburst coal seam only that effective predrainage before mining and capable measures during mining.