System and method for three-dimensionally preventing rock burst above and below coal mine

• Main Authors: ZHU GANGLIANG, AISATO KAIRYU, LING ZHIQIANG, YIN CHUANPING, MA XIAOHUI, WANG BING, WANG DONGJIE, LYU DAZHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; MINING OR QUARRYING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a coal mine underground vertical three-dimensional rock burst prevention system which comprises a plurality of ground micro-seismic monitoring devices arranged on the ground, a plurality of underground micro-seismic monitoring devices arranged on an underground mining working face, a rock noise monitoring device, a stress monitoring device and a mine pressure monitoring device. All the devices are connected with a comprehensive early warning platform arranged on the ground. The invention further discloses a coal mine up-down three-dimensional rock burst prevention and control method. The method comprises the steps that the L-shaped horizontal well is constructed in a rock stratum, top plate directional long drilling hydraulic fracturing is conducted, and top plate pre-splitting blasting is conducted to achieve three-dimensional weakening of areas of low-position hard top plates, middle-position hard top plates and high-position hard top plates; by means of pressure relief measures such