| 摘要 |
FIELD: mining. ^ SUBSTANCE: removal method of mechanical complex of mining faces includes one or several removal developments between preparatory ventilation and conveyor developments till mechanical complex is near it; their attachment with pickups and two-level anchoring, roof tightening in the removal area, installation of plates with one pointed end, introduction of mechanical complex to prepared removal developments and its removal. At that, from one of removal developments with inclination of 75-80 to horizon, opposite to the moving mining face, there drilled around is the main roof and wells are filled with non-explosive mineral composition solution which includes cement component capable of being expanded during its hydration with development of excess pressure exceeding the resistance to expansion of the main roof. ^ EFFECT: eliminating formation of increased overburden pressure above removal development. ^ 2 cl, 4 dwg |
