Study on Wear Prediction of Shield Disc Cutter in Hard Rock and Its Application

It is important to enable the prediction of disc cutter wear during shield tunnelling through hard rock because such wear is associated with project delays and increased costs. Based on a theoretical analysis of Archard’s wear mechanism and Euler’s rotation theorem, a displacement equation of rock-b...

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Bibliographic Details
Published in:KSCE journal of civil engineering 2022, 26(3), , pp.1439-1450
Main Authors: Wang, Zhenyong, Liu, Chenglong, Jiang, Yusheng, Dong, Linwei, Wang, Shixian
Format: Article
Language:English
Subjects:
Abrasive wear
Adhesive wear
Civil Engineering
Cost analysis
Disc cutters
Drilling & boring machinery
Engineering
Fatigue wear
Geotechnical Engineering & Applied Earth Sciences
Industrial Pollution Prevention
Prediction models
Rock
Rocks
Theoretical analysis
Tunnel Engineering
Tunneling shields
Wear
Wear mechanisms
Wear tests
토목공학
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Summary:It is important to enable the prediction of disc cutter wear during shield tunnelling through hard rock because such wear is associated with project delays and increased costs. Based on a theoretical analysis of Archard’s wear mechanism and Euler’s rotation theorem, a displacement equation of rock-breaking point A on the disc cutter ring is studied, and then a new wear prediction model is established combined with the theoretical analysis of the disc cutter force and wear test. The cutter wear prediction model is verified by using the data of two cases, and the results reveal that the errors between measured and predicted values are less than 25%. The research results also show that abrasive wear is the main wear mechanism (approximately 88%). In addition, the influence of fatigue wear is very small, accounting for only approximately 2%, which can be ignored. Finally, the maximum tunneling distance of disc cutters under different installation radii and penetration is studied using the model, and the results can be used as references for optimizing shield tunneling parameters and predicting the disc cutter replacement time.
ISSN:1226-7988
1976-3808
DOI:10.1007/s12205-021-0817-z