Abstract

The stress–strain behavior of piecewise-homogenous rock mass surrounding a horizontal longwall is defined by the natural stress field and by mechanical constants of rocks and coal. The developed algorithm of successive approximations for the characteristics of rock mass with a longwall integrates all known partial algorithms into a class of difficult problems. The authors propose solving inverse problems by identification of top coal caving parameters from the numerical experiment and using additional information on geomechanical behavior of coal seam ahead of face.

中文翻译：

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通过确定放顶煤参数评价煤层和长壁变形

摘要

围绕水平长壁的分段均质岩体的应力-应变行为由自然应力场以及岩石和煤的机械常数定义。针对长壁岩体特征的逐次逼近开发算法将所有已知的局部算法集成到一类难题中。作者提出了通过从数值实验中识别出最高放煤参数并使用有关煤层在工作面前的地质力学行为的附加信息来解决反问题的方法。