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采动应力场分布特征及其对煤岩瓦斯动力灾害的控制作用分析
Study on the distribution laws of mining pressure field and its control action on dynamic disasters in coal mines
【摘要】 以实际发生动力灾害的采掘工作面为模拟原型,在模拟分析采场和巷道应力分布特征的基础上,分析了不同应力分布对煤岩瓦斯动力灾害的控制作用,得出了采场易于发生应力主导型的动力灾害而巷道更易于发生瓦斯作用为主导的、高强度的煤岩瓦斯动力灾害的规律特征,并举例对上述分析做了论证。
【Abstract】 Taking the cutting face in which disasters occurred as prototypes,based on simulation analysis of the stress distribution laws of stope and roadway,control action of which for disasters was analyzed.The characteristics that the stress play a leading effect in stope and gas playing the same role in roadway for the occurrence of disasters were obtained.Above analyses was proved by citing examples.
【关键词】 采动应力场;
动力灾害;
数值模拟;
支承压力;
【Key words】 mining pressure field; dynamic disaster; numerical simulation; abutment pressure;
【Key words】 mining pressure field; dynamic disaster; numerical simulation; abutment pressure;
- 【文献出处】 煤炭学报 ,Journal of China Coal Society , 编辑部邮箱 ,2011年04期
- 【分类号】TD712.52
- 【被引频次】66
- 【下载频次】1469