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冲击矿压现象及特点 | 2011-9-26 10:19:00
冲击矿压现象及特点
冲击地压(岩爆)是井巷或工作面周围岩体,由于弹性变形能的瞬时释放而产生的一种以突然、急剧、猛烈的破坏为特征的动力现象。根据原岩(煤)体应力状态不同,冲击 地压可分为3类:重力型冲击地压、构造应力型冲击地压、中间型或重力一构造型冲击地压。
冲击地压的特点:
(1)一般没有明显的预兆,难于事先确定发生的时间、地点和冲击强度;
(2)发生过程短暂,伴随巨大声响和强烈震动;
(3)破坏性很大,有时出现人员伤亡。
- 上一篇:冲击地压的预测方法
- 下一篇:矿山开采常见顶板事故

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