煤岩串联组合模型及冲击地压机理的研究
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摘要
用两体相互作用理论和RFPA2D系统对煤岩组合模型的变形与破裂过程进行了理论和数值试验研究。理论分析表明利用煤岩组合试样可以反映冲击地压过程中的基本力学现象。数值试验考虑了煤岩组合模型中岩石体积含量对于两体最终破裂过程的影响,得到了组合试样的应力-应变曲线和破裂过程中应力场和声发射的分布规律,并把数值和理论结果进行了对比分析。最后,应用数值模拟系统对矿柱示例进行了模拟分析。
In this paper, the theoretical model and RFPA system were used to study the deformation and failure process of rock - coal. Based on the theoretical analysis, it is shown that the essential mechanical properties of the rock - coal in the process of rockburst can be investigated by virtue of rock - coal theoretical model. On the other hand, the effect of the volume proportion of rock in rock - coal model on the ultimate failure was taken into account in the numerical test. Moreover, the stress - strain curves of the rock - coal models and the stress field and the distribution of acoustic emission (AE) were obtained through the numerical test, and the results keep good accordance with theory.
引文
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    [5] 唐春安.岩石破裂过程中的灾变[M].北京:煤炭工业出版社.1993.

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