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借鉴地面钻孔理论研究的成果,首次将地层力的三维分析应用于煤矿井下抽放瓦斯定向长钻孔的受力分析。首先对影响钻孔轨迹因素进行了综合分析,在对地层力进行三维分析的基础上,给出了地层力计算模型,并给出了计算实例。
Using the results of ground drilling theory for reference, for the first time, the three-dimensional analysis of stratigraphic force is applied to the stress analysis of long-hole gas drainage direction under coal mine. Based on the three-dimensional analysis of the stratigraphic force, the calculation model of the stratigraphic force is given and the calculation examples are given.