Abstract
The problem of disc cutter wear is inevitable when shield or TBM excavating hard rock for a long distance, thus, the study of disc cutter wear model has an important project value on predicting its service life and replacement opportunity. It is put forward by analyzing disc cutter wear mechanism that the main wear form is abrasive wear, which is based on plastic removal mechanism. Then, disc cutter wear rate and linear wear rate prediction models are obtained by approximate calculation and mathematical deduction, which are based on Rabinowicz equation and CSM model. At last, the two models are verified through field test data from three projects, and the results show that the prediction model can accurately reflect the real wear situation of disc cutter.
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Funding
National Key Basic Research Program of China (973 Program) (Grant No. 2014CB046906), National Natural Science Foundation of China (Grant No. 51608117), China Railway Research and Development Plan (Grant No. 2016G004-A).
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Yang, Y., Hong, K., Sun, Z. et al. The Derivation and Validation of TBM Disc Cutter Wear Prediction Model. Geotech Geol Eng 36, 3391–3398 (2018). https://doi.org/10.1007/s10706-018-0540-9
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DOI: https://doi.org/10.1007/s10706-018-0540-9