Mine Stress Prevention and Control Technology for Coal Roadway Excavation with Strong Impact Tendency in Huating Coal Mine

According to the violence and complexity of rock burst for specially thick coal seam roadway with strong impact tendency in Huating Coal Mine, adhering to the principle of “strong supporting, strong monitoring and strong unloading”, combined with the geological mining conditions of Huating Coal Mine, from the aspects of roadway layout and roadway supporting technology and the pressure relief technology during excavation, some measures had been taken, such as adjusting and optimizing parameters fully, reducing the degree of stress concentration, improving the strength of roadway supporting, and decreasing the intensity of mine stress behaviors. The results showed that the time, roadway damage, influence time and casualties had significantly reduced for mine stress behaviors compared with the approximate conditions of working face excavation. It had achieved a good effect and ensured the safe excavation of mine roadway.