Prediction of surface settlement around subway foundation pit based on Self- CGRU model

Expand
  • 1. School of Urban Geology and Engineering, Hebei GEO University, Shijiazhuang, Hebei 050031, China 2. Hebei Technology Innovation Center for Intelligent Development and Control of Underground Built Environment, Hebei GEO University, Shijiazhuang, Hebei 050031, China 3. Key Laboratory of Intelligent Detection and Equipment for Underground Space of Beijing-Tianjin-Hebei Urban Agglomeration, Hebei GEO University, Shijiazhuang, Hebei 050031, China 4. School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo, Shandong 255049, China 5. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China)
ZHANG Wen-song, male, born in 1994, PhD, Lecturer, focusing on settlement prediction, civil and transportation big data mining and analysis. E-mail: zhangwensong2023@163.com

Online published: 2025-04-16

Supported by

the Science Research Project of Hebei Education Department (BJK2024090) and the National Natural Science Foundation of China (52172314).

Abstract

To improve the prediction accuracy of surface settlement around subway foundation pit, a deep attention hybrid prediction model, termed self-attention convolutional gated recurrent units (Self-CGRU), is proposed based on the self-attention mechanism and deep learning. The Self-CGRU model can capture the spatio-temporal characteristics of settlement data. The Self-CGRU model is constructed by integrating a spatial module and a temporal module. In the spatial module, the convolutional neural network is selected to capture the spatial correlations of settlement data obtained from the adjacent monitoring points. In the temporal module, the gated recurrent units neural network is used to analyze the temporal rules of settlement data. In addition, the self-attention mechanism is introduced into the Self-CGRU model to capture the autocorrelation in settlement data. Then, the predicted values of settlement can be obtained. Surface settlement data around the subway foundation pit in Shenzhen, China are selected to verify the performance of Self-CGRU model. The results indicate that the Self-CGRU model outperforms existing models, achieving a prediction accuracy improvement ranging from 17.48% to 29.17% compared to these models. The research results can provide an accurate and stable new model for the prediction of surface settlement around subway foundation pit.

Cite this article

ZHANG Wen-song, JIA Lei, YAO Rong-han, SUN Li, . Prediction of surface settlement around subway foundation pit based on Self- CGRU model[J]. Rock and Soil Mechanics, 2024 , 45(8) : 2474 -2482 . DOI: 10.16285/j.rsm.2023.6426

Outlines

/