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• W4214713565 startingPage "2267" @default.
• W4214713565 abstract "During tunneling processes, disc cutters of a tunnel boring machine (TBM) usually need to be frequently and unexpectedly replaced. Regular inspections are needed to check disc cutters’ status, which significantly reduces the work efficiency and increases the cost. This paper proposes a new prediction model based on TBM operational parameters and geological conditions that determines whether disc cutter replacement is needed. Firstly, an evaluation criterion for whether the cutters need to be replaced is constructed. Secondly, specific parameters related to the evaluation criterion are analyzed and 18 features are established on tunneling monitoring information. Then, the mapping model between the cutter replacement judgement and the established features is built based on a kernel support vector machine (KSVM). Finally, the data obtained from a Jilin water transport tunnel project is utilized to verify the performance of the proposed model. Test results show that the new model can obtain an average accuracy of 90.0% and an average F1 score of 86.2% on field data prediction based on data from past tunneling days. Therefore, the proposed data-predictive model can be used in tunneling to accurately predict whether disc cutters need to be replaced before human judgment, and thereby greatly improve tunneling safety and efficiency." @default.
• W4214713565 created "2022-03-02" @default.
• W4214713565 creator A5023363049 @default.
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• W4214713565 date "2022-02-22" @default.
• W4214713565 modified "2023-09-26" @default.
• W4214713565 title "Prediction Model of Tunnel Boring Machine Disc Cutter Replacement Using Kernel Support Vector Machine" @default.
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• W4214713565 doi "https://doi.org/10.3390/app12052267" @default.
• W4214713565 hasPublicationYear "2022" @default.
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