基于机器学习算法的采煤机截割路径规划

Coal shearer cutting path planning based on machine learning algorithm

  • 摘要: 【目的及方法】综采工作面智能化是煤矿智能化核心,但当前地质模型的智能化开采实践数据量较少,且模型精度有限,不能有效利用采煤机截割历史数据,截割效率较低。因此,提出一种基于机器学习算法的规划采煤机截割路径的方法,将历史揭露的数据应用在截割路径规划过程中,能够有效提高截割历史数据的利用率,实现对采煤机精准截割。而后进行了现场应用,取得如下认识和成果。【结果】使用真实的采煤机截割前滚筒高度数据对模拟得到的截割路径进行了验证,结果证明,采阶段模型预测的煤层厚度起伏形态与真实煤层厚度起伏形态较一致,可以保证2个班的智能开采精度。【结论】三维地质模型与人工智能的结合,进一步提升了采煤机截割的智能化水平,为真正实现规划截割无人操作奠定了基础。

     

    Abstract: The intelligent fully-mechanized mining face is an important component of the intelligent development of coal mines. However,the amount of intelligent mining practice data based on geological models is relatively small,and the model accuracy is limited,which cannot effectively utilize the historical data of coal shearer cutting,and the cutting efficiency is relatively low. Therefore,this paper proposes a method for planning the cutting path of coal shearer based on machine learning algorithms. Applying the historical exposed data in the process of cutting path planning can effectively improve the utilization rate of historical cutting data,and achieve precise cutting of the coal shearer. We obtain the following understandings and achievements: The simulated cutting path was verified using the height data of the drum before the cutting of real coal shearer. The results proved that the predicted coal seam thickness fluctuation pattern of the mining stage model was relatively consistent with the real coal seam thickness fluctuation pattern,which could ensure the intelligent mining accuracy of two shifts. The combination of 3D geological models and artificial intelligence has further enhanced the intelligent level of coal mining machine cutting,laying a solid foundation for truly achieving unmanned operation in planned cutting.

     

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