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为了安全开采承压水下压煤,顶板的维护至关重要,采用合理的开采方法是维护顶板的方法之一。根据小马矿地质条件计算导水裂隙带高度,建立顶板力学模型,运用FLAC3D分别对垮落法、膏体充填法开采过程中顶板的破坏情况进行了数值模拟,以确定承压水下膏体充填开采的可靠性。
In order to safely mine sub-pressure coal under pressure, the maintenance of the roof is very important. The rational mining method is one of the methods to maintain the roof. Based on the geological conditions of the Poma Mine, the height of the water-conducting fractured zone was calculated and the mechanical model of the roof was established. The failure of the roof during the mining of the caving method and the paste-filling method was simulated by FLAC3D, respectively. Filling mining reliability.