极薄煤层破碎顶板条件下液压支架带压移架残余支撑力决策方法  

Decision-making method for residual support force of hydraulic supports during pressurized moving under fragmented roof conditions in ultra-thin coal seams

作　　者：张传伟[1,2] 张刚强 路正雄 李林岳 何正伟 龚凌霄 黄骏峰 ZHANG Chuanwei;ZHANG Gangqiang;LU Zhengxiong;LI Linyue;HE Zhengwei;GONG Lingxiao;HUANG Junfeng(School of Mechanical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;Shaanxi College of Communication Technology,Xi'an 710018,China;School of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054 [2]陕西交通职业技术学院,陕西西安710018 [3]西安科技大学安全科学与工程学院,陕西西安710054

出　　处：《工矿自动化》2025年第3期22-31,38,共11页Journal Of Mine Automation

基　　金：陕西省重点研发计划项目(2022GD-TSLD-63,2022GD-TSLD-64);陕西省教育厅青年创新团队科研计划项目(23JP100)。

摘　　要：在破碎顶板条件下,液压支架带压移架过程中残余支撑力的精准决策对于提高极薄煤层智能化开采效率和保障作业安全至关重要。为实现极薄煤层破碎顶板条件下液压支架带压移架残余支撑力的准确决策,提出了一种基于改进蜣螂算法(IDBO)优化深度混合核极限学习机(DHKELM)的液压支架带压移架残余支撑力决策方法。在混合核极限学习机(HKELM)基础上引入极限学习机自动编码器(ELM-AE)结构来构建DHKELM模型,以增强对复杂输入的特征提取和非线性映射能力;引入ICMIC混沌映射、Lévy飞行和贪婪策略对蜣螂算法(DBO)进行改进,形成具备更高寻优精度和更快收敛速度的IDBO算法;利用IDBO算法优化DHKELM模型的超参数,建立IDBO-DHKELM模型。结合极薄煤层综采工作面液压支架带压移架实测数据,通过可视化和相关性分析,确定支架号、带压移架前支架支撑力、推移油缸进液压力和推移油缸行程变化速度作为影响残余支撑力的关键特征,并构建残余支撑力决策样本数据集,最终完成IDBO-DHKELM模型的训练与评估。实验结果表明:基于IDBO-DHKELM模型的液压支架带压移架残余支撑力决策结果的均方根误差(RMSE)、平均绝对误差(MAE)及决定系数(R^(2))分别为0.143,0.119,0.971,具有较高的决策精确度。Accurate decision-making on the residual support force of hydraulic supports during pressurized moving under fragmented roof conditions is crucial for improving intelligent mining efficiency in ultra-thin coal seams and ensuring operational safety.To address this challenge,this study proposed a novel decision-making method based on a Deep Hybrid Kernel Extreme Learning Machine(DHKELM)optimized by an Improved Dung Beetle Optimization(IDBO)algorithm.The DHKELM model was constructed by incorporating an Extreme Learning Machine Autoencoder(ELM-AE)into the Hybrid Kernel Extreme Learning Machine(HKELM)framework,enhancing its feature extraction capability and nonlinear mapping efficiency for complex inputs.Furthermore,the Dung Beetle Optimization(DBO)algorithm was enhanced with ICMIC chaotic mapping,Lévy flight,and a greedy strategy,yielding the IDBO algorithm with improved optimization accuracy and faster convergence.The IDBO algorithm was further employed to optimize the hyperparameters of the DHKELM model,forming the IDBO-DHKELM model.Using field-measured data from hydraulic supports during pressurized moving in a fully mechanized ultra-thin coal seam mining face,key influencing factors of residual support force—including support number,support force before pressurized moving,pushing cylinder inlet pressure,and pushing cylinder stroke variation speed—were identified through visualization and correlation analysis.A residual support force decision-making dataset was subsequently constructed,and the IDBODHKELM model was trained and evaluated.Experimental results demonstrate that the proposed IDBODHKELM model achieves high decision-making accuracy,with a root mean square error(RMSE)of 0.143,a mean absolute error(MAE)of 0.119,and a coefficient of determination(R^(2))of 0.971.

关 键 词：极薄煤层 液压支架 带压移架 残余支撑力 改进蜣螂算法 深度混合核极限学习机 

分 类 号：TD355.4[矿业工程—矿井建设]