NDLI: New model for predicting Instantaneous Cutting Rate of axial-type roadheaders

Content Provider	Springer Nature Link
Author	Zhang, Qianqian Han, Zhennan Zhang, Mengqi Zhang, Jianguang
Copyright Year	2017
Abstract	Roadheaders are mechanical excavators which have been extensively used in tunneling, mining and civil engineering works. Performance prediction of the roadheader is major factor in determining the economy of an underground excavation project. In this study, a new model for predicting the Instantaneous Cutting Rate (ICR) has been developed. The performance of EBZ260W axialtype roadheader has been evaluated in the laboratory artificial rock cutting tests and in the tunneling field tests. Using the model, the processes of the artificial rock cutting in the laboratory tests have also been simulated. The predicted average ICRs in the laboratory tests, and in the simulations, together with the measured average ICRs in the laboratory tests and in the field tests are presented in this paper. The comparison of the predicted and measured ICRs shows that the relative error is within 5%. There are also reasonable agreements and strong correlations between the model and tests results. The new ICR prediction model is also supported by the empirical prediction formulas developed by other researchers. Hence, the model can be used to reliably predict the ICR for axial-type roadheaders.
Starting Page	168
Ending Page	177
Page Count	10
File Format	PDF
ISSN	12267988
Journal	KSCE Journal of Civil Engineering
Volume Number	21
Issue Number	1
e-ISSN	19763808
Language	English
Publisher	Korean Society of Civil Engineers
Publisher Date	2016-02-29
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	roadheader performance prediction instantaneous cutting rate cutting power cutting depth Civil Engineering Industrial Pollution Prevention Geotechnical Engineering & Applied Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Civil and Structural Engineering

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