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Smart Structures and Systems
  Volume 30, Number 6, December 2022 , pages 601-612

DATCN: Deep Attention fused Temporal Convolution Network for the prediction of monitoring indicators in the tunnel
Bowen Du, Zhixin Zhang, Junchen Ye, Xuyan Tan, Wentao Li and Weizhong Chen

    The prediction of structural mechanical behaviors is vital important to early perceive the abnormal conditions and avoid the occurrence of disasters. Especially for underground engineering, complex geological conditions make the structure more prone to disasters. Aiming at solving the problems existing in previous studies, such as incomplete consideration factors and can only predict the continuous performance, the deep attention fused temporal convolution network (DATCN) is proposed in this paper to predict the spatial mechanical behaviors of structure, which integrates both the temporal effect and spatial effect and realize the cross-time prediction. The temporal convolution network (TCN) and self-attention mechanism are employed to learn the temporal correlation of each monitoring point and the spatial correlation among different points, respectively. Then, the predicted result obtained from DATCN is compared with that obtained from some classical baselines, including SVR, LR, MLP, and RNNs. Also, the parameters involved in DATCN are discussed to optimize the prediction ability. The prediction result demonstrates that the proposed DATCN model outperforms the state-of-the-art baselines. The prediction accuracy of DATCN model after 24 hours reaches 90 percent. Also, the performance in last 14 hours plays a domain role to predict the short-term behaviors of the structure. As a study case, the proposed model is applied in an underwater shield tunnel to predict the stress variation of concrete segments in space.
Key Words
    machine learning; mechanical behaviors; monitoring; prediction; tunnel
(1) Bowen Du, Zhixin Zhang, Junchen Ye, Wentao Li:
SKLSDE and BDBC Lab, Beihang University, Beijing 100083, China;
(2) Xuyan Tan, Weizhong Chen:
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
(3) Xuyan Tan, Weizhong Chen:
University of Chinese Academy of Sciences, Beijing 100049, China.

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