In order to explore the distribution characteristics and degree of impact hazards in the affected area of the central main roadway goaf in Hujiahe Mine,CT detection technology was used to in-situ detect the affected area of the central main roadway goaf,and impact hazard assessment was conducted to determine the hazardous area and level.The results indicate that the strong impact tendency,dense roadway groups,and the mutual superposition of goaf support pressure increase the risk of impact in the central main roadway area;The coal and rock layers in the detection area of the central main roadway are generally at a weak impact risk level,further determining the hazardous area;And targeted anti-impact technical meas-ures are proposed to improve the prevention and control level of rockburst with good results.
关键词
中央大巷/采空区影响/冲击地压/冲击危险源/原位探测
Key words
central main roadway/affect of goaf/rock burst/impact hazard source/in-situ detection
维普
万方数据