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在采矿活动中,顶板覆岩的运动是整个矿山力学问题的核心。要研究底板破坏问题,必须要跟顶板覆岩运动结合起来,根据覆岩运动的特点来研究底板破坏问题。采用三维有限差分数值模拟采场的开采过程,分析顶板覆岩运动时底板的破坏特征,最后得出采场底板采动破坏动态响应特征。
In mining activities, roof overburden movement is the core of the mechanics of mine mechanics. To study the problem of floor damage, it must be combined with roof overburden movement, according to the characteristics of overburden movement to study the problem of floor damage. The finite element method is used to simulate the mining process of stope and analyze the failure characteristics of the floor when the overburden rock is moving. Finally, the dynamic response characteristics of mining floor under mining are obtained.