Efficient full-mining and full-filling mining method for nearly-horizontal thick coal seam

• Main Authors: QIN MANMAN, WU SHULI, MENG ZHAOLONG, CHEN MINGCHENG, ZHANG LEI, DU TAO, XIA CHANGCHUN, FENG SHENG, WU RUI, HAO WANDONG, LIU CHANG, XIAO YADI, ZHANG WANGLEI, ZHANG ZHENDONG, LI XINGCAI
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; MINING OR QUARRYING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses an efficient full-mining and full-filling mining method for a nearly-horizontal thick coal seam, belongs to the field of application of mining equipment and mining methods, and can solve the problems that resources are wasted and the coal mining efficiency is restricted by the strength of a filling body in the mining of the existing medium-thickness coal seam. Two strip mining working faces are arranged in a to-be-mined area; the two strip mining working faces share one haulage roadway, two bolter miners are adopted for parallel operation, and two-wing branch roadways are mined in a jump mining mode; and layered stoping is carried out on each branch roadway twice. In the process of branch roadway mining, coal mining and filling operation are carried out at the same time, and filling materials are conveyed to the branch roadway after stoping by passing through a feeding well filling pipeline via an air return drift filling pipeline by taking a filling pump as power in a ground filling w