Research and Application of Cutting Method in Preventing and Controlling Coal and Gas Outburst Prominent

Abstract：Drill emission hole is measure to against and use often in the work of coal and gas outburst preventing, but in some dangerous sector, particularly when the coal bed is soft, the drill emission hole is extremely difficult and greatly affects the progress of coal and gas outburst preventing.The use of cutting method preventing and controlling coal and gas outburst prominent, first collapses a deep slit on the coal wall to increase gas release, then uses the minor cycle to enter the ruler, simultaneously also may use coal body resistance to prevent and control the prominent.In the period of cutting method using, may achieve to control gas emission by adjusting the factors of cutting height, and depth and charge of artillery eye.Compares with drill emission hole, the use of cutting method to against coal and gas outburst prominent have characteristics of security, time and labour-saving, and easy to operate.

Keyword：cutting method;coal and gas outburst prominent controlling;safety production of mine;