Method for preventing and controlling hard roof mine earthquake and gas hybrid power disasters in goaf

• Main Authors: LIU SHUMIN, CHEN SHAOJIE, LIU XIAOFEI, SHEN WENLONG, ZOU QUANLE, DU ZHAOWEN, YU JIANG, LI ZHONGHUI, YOON DAE-WI, KONG BIAO, WANG RUI, TIAN MAOLIN, WANG DENGKE, LI XUELONG, FU JIANHUA
• Format: Patent
• Language: Chinese; English
• Published: 27.02.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The invention discloses a method for preventing and controlling hard roof mine earthquake and gas hybrid power disasters in a goaf, and belongs to the technical field of coal mining. According to the method for preventing and controlling the hard roof mine earthquake and gas hybrid power disaster in the goaf, an L-shaped long drill hole is drilled from the ground, and the method further comprises the following steps that the L-shaped long drill hole extends into a fissure zone range above a goaf gas enrichment area, hydraulic fracturing is conducted on a target rock stratum through the L-shaped long drill hole, and a crack of the target rock stratum continuously extends; after hydraulic fracturing is finished, the oxygen concentration and the gas concentration in the L-shaped long drill hole are adjusted, after the oxygen concentration and the gas concentration reach the target range of gas detonation, ignition is carried out, gas in the fissure zone of the goaf is ignited, gas explosion is carried out, and t