首页|Rock mass quality prediction on tunnel faces with incomplete multi-source dataset via tree-augmented naive Bayesian network

Rock mass quality prediction on tunnel faces with incomplete multi-source dataset via tree-augmented naive Bayesian network

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Rock mass quality serves as a vital index for predicting the stability and safety status of rock tunnel faces.In tunneling practice,the rock mass quality is often assessed via a combination of qualitative and quan-titative parameters.However,due to the harsh on-site construction conditions,it is rather difficult to obtain some of the evaluation parameters which are essential for the rock mass quality prediction.In this study,a novel improved Swin Transformer is proposed to detect,segment,and quantify rock mass char-acteristic parameters such as water leakage,fractures,weak interlayers.The site experiment results demonstrate that the improved Swin Transformer achieves optimal segmentation results and achieving accuracies of 92％,81％,and 86％for water leakage,fractures,and weak interlayers,respectively.A multi-source rock tunnel face characteristic(RTFC)dataset includes 11 parameters for predicting rock mass quality is established.Considering the limitations in predictive performance of incomplete evaluation parameters exist in this dataset,a novel tree-augmented naive Bayesian network(BN)is proposed to address the challenge of the incomplete dataset and achieved a prediction accuracy of 88％.In comparison with other commonly used Machine Learning models the proposed BN-based approach proved an improved performance on predicting the rock mass quality with the incomplete dataset.By utilizing the established BN,a further sensitivity analysis is conducted to quantitatively evaluate the importance of the various parameters,results indicate that the rock strength and fractures parameter exert the most significant influence on rock mass quality.

Rock mass qualityTunnel facesIncomplete multi-source datasetImproved Swin TransformerBayesian networks

Hongwei Huang、Chen Wu、Mingliang Zhou、Jiayao Chen、Tianze Han、Le Zhang

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Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,China

Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China

School of Civil Engineering,Beijing Jiao tong University,Beijing 100044,China

Qingdao Guoxin Second Jiaozhou Bay Subsea Tunnel Co.,Ltd.,Qingdao 266071,China

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国家自然科学基金国家自然科学基金Qingdao Guoxin Jiaozhou Bay Second Submarine Tunnel Co.,Ltd.,the Academician and Expert Workstation of Yunnan ProvinceScience and Technology Innovation Project of YCIC Group Co.,Ltd

5227910752379106202205AF150015YCIC-YF-2022-15

2024

10.1016/j.ijmst.2024.03.003

矿业科学技术学报(英文版)
中国矿业大学

矿业科学技术学报(英文版)

CSTPCDEI
影响因子：1.222
ISSN：2095-2686
年,卷(期)：2024.34(3)
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