综放首采工作面异常矿压显现分析及控制措施

Analysis and Control Measures of Abnormal Ground Pressure Appearance in the First Mining Face of Fully Mechanized Caving

矿井首采工作面的矿压特征往往因缺乏相应数据和经验而存在较大不确定性,针对9102工作面的具体地质生产条件和面临的围岩支护难题,在汇总大量观测数据与资料的基础上,对工作面常规情况及异常情况下的矿压显现特征进行分析,进而依据具体的矿压显现特征设计了9102综放工作面采场围岩控制体系,制定了相应围岩控制措施。现场实践效果表明,工作面推采过程中仅发生局部轻度片帮冒顶事故,未发生大范围严重冒顶片帮事故,保障了工作面的安全生产。

The characteristics of rock pressure in the first mining face of a mine often have significant uncertainty due to the lack of corresponding data and experience.In response to the specific geological production conditions and surrounding rock support challenges faced by the 9102 working face,based on a large amount of observation data and information,the characteristics of rock pressure behavior in both conventional and abnormal conditions of the working face are analyzed.Furthermore,based on the specific characteristics of rock pressure manifestation,a control system for the surrounding rock of the 9102 fully mechanized caving face was designed,and corresponding control measures for the surrounding rock were formulated.The on-site practice results show that only local mild roof falling accidents occurred during the mining process of the working face,and no large-scale serious roof falling accidents occurred,ensuring the safety production of the working face.