EXPLOSION PREVENTION IN COAL MINE TBM DRIFTS

摘要

The application of the EPBM in the development of the conveyor drift (813m in length) was safely completed with success with significant learnings in the methane and other hazardous gas identification and its effective methane explosion risk management. At the time of completion of this paper, the men and material drift development using the same TBM has been initiated. The following conclusions applicable to a coal mine or other civil TBM projects in managing the explosion risks were made: For the first time in the application of TBM development in coal mines, the operational experience has suggested that methane and other spontaneous combustion gases will continue to be present as potential explosion hazards.