Small Coal Mine Goaf Detecting and Roof Management Technology

Aiming at the problem of recovery mining 1096101 working face in Yangjian Coal Mine which had been mined by small coal mine, gas disaster and water disaster existing in the goaf, coal seam spontaneous combustion, the instability of upper mining pillar, roof pressure on wide area etc. the paper puts forward the roadway and roof management measures by detecting the goaf.