Advance Rate Prediction by Recurrent Neural Networks Analysis on In-situ Data of Tunnel Boring Machines
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摘要: 本文基于工程实测数据, 在分析其序列性质的基础上, 提出了基于时序神经网络方法的盾构掘进速率预测方法, 并在天津地铁9号线这一实际工程算例中对所提出的方法的有效性进行验证, 讨论比较了Simple RNN、LSTM与GRU这3种不同时序神经网络算法的掘进速率预测表现。结果表明, 本文提出的基于时序神经网络的盾构掘进速率预测方法能够较好地分析掘进中积累的工程实测数据中的序列性质, 从而对前方掘进速率进行预测, 且比具有"门"性质的LSTM与GRU方法表现出了更好的预测效果。Abstract: Based on the in-situ data and the analysis of its time series properties, this paper proposes a prediction method of advance rate based on the Recurrent Neural Network(RNN) method, and verifies the effectiveness of the proposed method in the practical engineering example of Tianjin Metro Line 9. The prediction performances of other methods, such as Simple RNN, Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) are discussed and compared. The results show that the prediction method of TBM's advance rate based on RNN proposed in this paper can better analyze the sequence properties of the accumulated engineering measured data in tunneling, so as to predict the tunneling rate ahead, and show better prediction performance than the LSTM and GRU methods with ″gate″ properties.
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Key words:
- tunnel boring machine /
- advance rate prediction /
- time series /
- neural networks /
- in-situ data
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表 1 天津地铁9号线所用标段参量部分统计性质
参数名及单位 最大值 最小值 均值 标准差 掘进速率/(mm·min-1) 55.68 16.84 35.23 10.04 总推力/kN 24 701.68 10 436.07 15 840.43 2 905.33 刀盘扭矩/(kN·m) 1 706.28 803.08 1 264.49 148.71 刀盘转速/(r·min-1) 1.10 0.40 0.94 0.14 泊松比/kPa 7.89 4.70 6.57 0.01 容重/(g·cm-3) 0.31 0.23 0.29 0.52 粘聚力/kPa 2.23 1.60 2.10 0.06 静止土压力系数 32.93 19.84 28.03 2.10 内摩擦角/(°) 0.45 0.31 0.40 0.03 -
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