Roadway arrangement method for reserving small coal pillars between stope faces

• Main Authors: XIA YONGXUE, LU CHUANG, FENG MEIHUA, PAN JUNFENG, ZHANG CHENYANG
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; MINING OR QUARRYING; SHAFTS; TUNNELS

The invention discloses a roadway arrangement method for reserving small coal pillars between stope faces, which comprises the following steps of: dividing a first working face into a first section and a second section, and dividing a second working face into a third section and a fourth section; digging a transportation roadway, an open-off cut, a third section of air return roadway and an auxiliary roadway of the second working face to construct a first air return system; the third section is stoped, a fourth section air return way is excavated, and ventilation is conducted through a first air return system during stoping of the third section; retaining or filling the auxiliary roadway; if the auxiliary roadway is filled, the transportation roadway, the open-off cut and the fourth-section air return roadway form a second air return system, the fourth-section stoping is ventilated through the second air return system, or if the auxiliary roadway is reserved, the auxiliary roadway, the open-off cut and the fo