Gas Control Technology for Fully Mechanized Face of Outburst Coal Seam with Hard Roof during Initial Caving
In the fully mechanized working face, with working face forward, gob area become bigger and bigger, when the top area reach a certain span ,roof in gob suddenly cave, outspreading a large quantity of mine gas, easy to cause the gas overrun and gas accidents. In addition, shock pressure which is caused when large area roof cave, easily causing casualties and damage of equipment. This paper introduces Pan three Coal mine 17171(1) ore advance of fully mechanized working face presplit blasting, rotating stoping and comprehensive extraction technologies, which successfully solve the roof management and the gas problems during initial release, achieving good security benefits.
Weiguo Pan, Jianxing Ren and Yongguang Li
J. G. Fu et al., "Gas Control Technology for Fully Mechanized Face of Outburst Coal Seam with Hard Roof during Initial Caving", Advanced Materials Research, Vols. 347-353, pp. 974-978, 2012