摘要
The article introduced the key technology, mining process, and back-and-forth mining method for the caving working face of hard-thick coal seams in Datong mine, and researched this innovations process, optimized the systemic design and working face out-play, tried to perfect the caving mining technology of hard-thick coal seams further.
The article introduced the key technology, mining process, and back-and-forth mining method for the caving working face of hard-thick coal seams in Datong mine, and researched this innovations process, optimized the systemic design and working face outplay, tried to perfect the caving mining technology of hard-thick coal seams further.
基金
Supported by the Production Safety and Supervision of Management Bureau of China(04-116)
the Returned Overseas Scholar Fund of Educational Department of China(2003406)
the Soft Science Planning Program of Shandong Province(A200423-6)
the National Soft Science Planed Program (2004DGQ3D090)