Concentration drainage roadway layout method in mining area of monocline coal seam

• Main Authors: ZHAO CHUANGANG, SHENG CHAO, SONG WEI, HUA ZHAOWEN, LIU QINGBAO, GUO JIANNAN, ZAN DONGFENG, WANG CHANGYOU, SUN DONGFEI, MENG FEI
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The invention discloses a concentration drainage roadway layout method in a mining area of a monocline coal seam. The concentration drainage roadway layout method comprises the steps that firstly, themining area is arranged to be inclined for mining, two parallel mining area concentration drainage roadways are arranged along the trend of the coal seam at the lowest area of the mining area, one ofthe mining area concentration drainage roadways is connected with a main return way, the other one of the mining area concentration drainage roadways is connected with a water sump entry, and it is ensured that not less than 0.5% of a drain slope exists in the direction towards a water sump; the mining area concentration drainage roadways are connected with cutting holes of working faces throughdrainage connection roadways; water gate walls are arranged in the drainage connection roadways, drainage openings are formed in the walls, gushing water of all working faces and goaf flows and drainsalong the coal seam to orig