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运用FLAC3D建立孤岛煤柱模型,通过FISH语言编程获得煤岩体弹性应变能密度,研究了孤岛煤柱围岩弹性应变能密度的积聚与分布特征,并建立冲击矿压危险性的能量密度判据,分析了在工作面埋深、顶底板弹模、煤柱宽度等相关因素的影响下,煤岩体弹性应变能密度和能量密度因子的变化规律。
By using FLAC3D to establish the model of island pillars, the elastic strain energy density of coal and rock mass was obtained by FISH language programming. The elastic strain energy density accumulation and distribution characteristics of surrounding rock of island pillars were studied and the energy density criterion of rock burst pressure was established , The variation law of elastic strain energy density and energy density factor of coal and rock mass under the influence of relevant factors such as the buried depth of the working face, roof and floor elastic modulus and pillar width is analyzed.