A Method to Predict Disc Cutter Specific Energy for TBM Based on CSM Model

Gang Li; Li Da Zhu; Jian Yu Yang; Wan Shan Wang

doi:10.4028/www.scientific.net/AMM.236-237.414

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 236-237A Method to Predict Disc Cutter Specific Energy...

A Method to Predict Disc Cutter Specific Energy for TBM Based on CSM Model

Abstract:

By using fracture mechanics theory of rock, the rock fragmentation mechanism of tunnel boring machine (TBM) cutters is analyzed and the analysis of forces of cutter is carried out. A new method to predict disc cutter specific energy for TBM is developed in this study. By using the dynamic models of TBM cutters interaction with the rock, specific energy prediction model for TBM cutter head is developed. The data from the actual tunnel construction is analyzed by using an example of Qinling tunnel and the comparison is made with the field data. The results indicate that the model developed in this study could not only replace the experiment to disc cutter specific energy for TBM, but also provide a theoretical basis for the performance prediction and optimal design of cutter head for TBM.

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Periodical:

Applied Mechanics and Materials (Volumes 236-237)

Pages:

414-417

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.236-237.414

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Online since:

November 2012

Authors:

Gang Li, Li Da Zhu, Jian Yu Yang, Wan Shan Wang

Keywords:

CSM Model, Mechanical Model, Specific Energy Prediction, Tunnel Boring Machine

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