Coal (rock) and gas outburst is one of intense natural disaster, is also a complicated and dynamical phenomenon, caused by stress, gas pressure of coal bed as well as coal structure.

Main geologic factors that influence recoverability of coal-seam gas include coal-bed permeability, reservoir pressure, gas saturation and desorption rate.

This paper mainly researches on the technique of draining long distance pressure relief gas in bed plate tunnel under the circumstance of mining protective coal seam.