煤与瓦斯突出力学模拟研究

发布时间：2018-03-14 19:44

  本文选题：煤与瓦斯突出　切入点：力学模型　出处：《煤炭技术》2015年08期 　论文类型：期刊论文

【摘要】：为了根据煤与瓦斯突出动力现象设计突出预警系统,减少灾害事故的发生,建立了煤与瓦斯突出力学模型。该模型考虑了地应力分布、煤体瓦斯压力分布与渗流、煤体不均匀性、吸附瓦斯的解吸等瓦斯突出主要影响因素。编制了三维有限元程序,并在此基础上进行了数值模拟计算。计算结果的物理图像正确合理,表明这个力学模型及三维计算程序可以对典型的工况进行计算模拟,为突出预警提供了参考依据。
[Abstract]:In order to design an outburst warning system according to the dynamic phenomena of coal and gas outburst and reduce the occurrence of disaster accidents, a mechanical model of coal and gas outburst is established, which takes into account the distribution of in-situ stress, the distribution of gas pressure and seepage of coal body. The main influencing factors of gas outburst, such as the inhomogeneity of coal body and the desorption of adsorbed gas, are analyzed. A three-dimensional finite element program is developed, and the numerical simulation calculation is carried out on the basis of which, the physical images of the calculated results are correct and reasonable. It is shown that the mechanical model and the three-dimensional calculation program can be used to simulate the typical working conditions and provide a reference basis for the outstanding early warning.
【作者单位】： 内蒙古科技大学矿业工程学院;辽宁工程技术大学矿业工程学院;
【分类号】：TD713
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本文编号：1612634