中央大巷采空区影响区域冲击危险源探测技术

Impact hazard source detecting technology of goaf affected area in central main roadway

为了探明胡家河煤矿中央大巷采空区影响区域冲击危险源分布特征及危险程度,利用CT探测技术原位探测中央大巷采空区影响区域,并进行冲击危险性评价,确定危险区域及危险等级。结果表明,强冲击倾向性、密集巷道群、采空区支承压力相互叠加使中央大巷区域冲击危险性升高;中央大巷探测区域内煤岩层总体处于弱冲击危险等级,进一步确定危险区域,提出针对性防冲技术措施,提高冲击地压防治水平,防治效果良好。

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 measures are proposed to improve the prevention and control level of rockburst with good results.