half coal and rock roadway 半煤岩巷
half-coal and half-rock roadway 半煤岩巷
coal and coal-rock roadway 煤及半煤岩巷道
Many dynamic disturbances often lead to local instability of roadway surrounding rock and mining workplace and result in rock burst in coal mining.
煤矿生产中存在着大量的动力扰动，常导致采矿巷道和采场围岩局部失稳，诱发冲击矿压发生。
The numerical analogy has been adopted to study the mechanic features influencing stress distribution in coal and rock around the roadway in order to control rock burst disasters.
为了治理冲击矿压灾害，采用数值模拟方法研究了井巷周围煤岩体的力学特性对应力分布的影响。
The prerequisite of rock burst occurrence is that the elastic energy in coal and rock mass around coal mine roadway and stope has accumulated enough.
冲击地压发生的前提是矿山井巷和采场周围的煤岩体中储存了足够的弹性能。
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