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在水文地质条件相似的情况下,与21109综采工作面临近的21301综采工作面发生了底板灰岩突水事故。通过分析陈四楼煤矿21109综采工作面水文地质条件,实施工作面底板瞬变电磁法勘探探测底板富水异常区,采用底板扰动破坏深度数值模拟及基于BP神经网络的底板扰动破坏深度模型等方法预测了21109综采工作面底板扰动破坏深度,优化设计了底板注浆改造钻孔,杜绝21109综采工作面突水事故的发生,保证了工作面安全生产。
In the case of similar hydrogeological conditions, a floor limestone inrush accident occurred in 21301 fully mechanized mining face near 21109 fully mechanized coal mining face. By analyzing the hydrogeological conditions of 21109 fully mechanized coal mining face in Chensilou Coal Mine, the bottom plate transient electromagnetic method is used to detect the anomalous water-rich zone of the floor, the floor disturbance disturbance depth numerical simulation and the BP neural network-based model of disturbance disturbance depth The method predicts the depth of disturbances of floor in 21109 fully mechanized coal mining face and optimizes the drilling of the floor grouting to prevent the occurrence of water inrush accident in 21109 fully mechanized coal mining face to ensure the safe production of working face.