基于FAN-TCN-Informer模型的TBM总推力预测

Prediction of TBM Total Thrust Based on FAN-TCN-Informer Model

  • 摘要: 隧道掘进机(TBM)掘进参数的精准预测对于维持掘进过程稳定、预防施工风险、提高作业效率具有重要意义。传统参数预测方法依赖人工经验或静态模型,难以有效处理掘进数据的非平稳性和长程依赖性问题。基于此,提出一种融合频域处理与多尺度时序建模的混合架构——FAN-TCN-Informer模型。该模型创新性地整合频率自适应归一化(FAN)、时序卷积网络(TCN)与Informer结构,通过FAN的频域分解能力缓解非平稳数据的分布偏移,借助TCN强化局部特征提取,并依托Informer实现了长程依赖的高效建模,成功实现了多尺度特征的深度融合。以贵州省聚鑫煤矿+1095 m运输大巷的TBM实际工作数据为研究对象,通过对比模型在不同步数下的预测表现,验证了所提方法的有效性。试验结果表明,FAN-TCN-Informer模型在多项评价指标上显著优于LSTM、GRU、Transformer等常用预测模型,尤其在15步预测任务中,平均绝对百分比误差(MAPE)和平均绝对误差(MAE)仅为4.4421%和148.595 3,展现出较高的预测准确性与稳定性。

     

    Abstract: The accurate prediction of tunnel boring machine (TBM) tunnelling parameters is of great importance for maintaining tunnelling process stability, mitigating construction risks, and enhancing operational efficiency. Traditional prediction methods, which rely on empirical expertise or static models, often struggle to handle the non-stationarity and long-range dependencies present in tunnelling data. A novel hybrid architecture—the FAN-TCN-Informer model—which integrates frequency-domain processing with multi-scale temporal modeling was proposed. The model innovatively combined Frequency Adaptive Normalization (FAN), Temporal Convolutional Network (TCN), and Informer. It leveraged FAN's frequency-domain decomposition capability to effectively mitigate distribution shift in non-stationary data, enhanced local feature extraction through TCN, and utilized Informer for efficient modeling of long-range dependencies, successfully achieving the deep fusion of multi-scale features. Using the actual TBM operational data from the +1095 m transportation tunnel at the Juxin Coal Mine in Guizhou Province as the research object, the effectiveness of the proposed method was validated by comparing the prediction performance of the model across different time steps. Experimental results demonstrate that the FAN-TCN-Informer model significantly outperforms commonly used forecasting models such as LSTM, GRU, and Transformer across multiple evaluation metrics. Particularly, in the 15-step prediction task, the mean absolute percentage error (MAPE) and mean absolute error (MAE) are only 4.4421% and 148.5953 respectively, demonstrating high prediction accuracy and stability.

     

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