基于机器学习的煤巷围岩稳定性预测与应用

Prediction of surrounding rock stability of coal roadway based on machine learning and its application

  • 摘要: 煤巷围岩稳定性分类对指导现场岩体工程设计、施工、管理具有重要的理论和工程实际意义。本文选取了影响煤巷围岩稳定性的7个关键指标,采用现场案例、调查问卷和文献计量等方法收集样本并建立了围岩稳定性分类数据库,基于6种机器学习方法分别建立了煤巷围岩稳定性分类预测模型。经模型计算得出,神经网络和改进的支持向量机模型具有较高的预测准确性。将模型应用于霍州矿区实际工程,结果表明,神经网络和改进的支持向量机方法预测精度高、可靠性好。

     

    Abstract: The classification of surrounding rock stability of coal roadway has important theoretical and practical significance for the design, construction and management of on-site rock mass engineering.This paper selected seven key indexes that affect the surrounding rock stability of coal roadway, collected the samples through field cases collection, questionnaires and literature measurement, and established the surrounding rock stability classification database.By drawing on six machine learning methods, this study established the classification prediction models of surrounding rock stability of coal roadway accordingly.Through model calculation, it is concluded that the Neural Network and the improved Support Vector Machine model have higher prediction accuracy.The model is applied to the actual project of Huozhou mining area.Results show that the neural network and the improved support vector machine methods have high prediction accuracy and good reliability.

     

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