DESIGN METHOD FOR MINE WITHOUT LEAVING COAL PILLAR AND WITHOUT ROADWAY TUNNELING

摘要

The present disclosure discloses a pit designing method without coal-pillar leaving and without laneway excavation, wherein the method includes the steps of: drilling a main shaft (1) and an auxiliary shaft (2) from a ground to a coal bed; exploiting in the coal bed a first connection laneway (31) and a second connection laneway (32), wherein the first connection laneway (31) is in communication with the main shaft (1), and the second connection laneway (32) is in communication with the auxiliary shaft (2); communicating the first connection laneway (31) and the second connection laneway (32), and using a communication part between the first connection laneway (31) and the second connection laneway (32) as a first open-off cut (4); and by using a direction of the first open-off cut (4) further away from the connecting line connecting the main shaft (1) and the auxiliary shaft (2) as a first direction, exploiting by cutting a coal wall in the first direction using a coal mining machine. The pit designing method without coal-pillar leaving and without laneway excavation according to the present disclosure effectively solves the problems in the prior art that coal mining has a large laneway excavation amount, a long time of shaft construction, a high excavation cost and frequent laneway accidents, and the coal-pillar leaving causes a huge waste of the coal resource.