Cutting Simulation Analysis of the Cutter Head of the Shield Machine

In the process of shield machine tunneling, the interaction between cutter head and soil is very complex. In order to meet the requirements of tunneling, the cutter head was designed according to the construction conditions of Tianjin metro and the Archimedes spiral layout method. The granite model...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-05, Vol.538 (1), p.12031
Main Authors: Zhao, Jingnan, Si, Xuekang, Guo, Jian, Ma, Xiaolei, Chen, Yuzhao, Li, Zichao, Dong, Yinghuai
Format: Article
Language:English
Subjects:
Computer simulation
Finite element method
Granite
Machine tools
Mathematical models
Reliability engineering
Structural reliability
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Summary:In the process of shield machine tunneling, the interaction between cutter head and soil is very complex. In order to meet the requirements of tunneling, the cutter head was designed according to the construction conditions of Tianjin metro and the Archimedes spiral layout method. The granite model and cutter head model were respectively established by the ABAQUS. The granite model was based on the classic Drucker - Pragel model, and the failure criterion including element deletion function was employ to simulate the yield and failure of rock. The force of the cutter head under cutting condition was analyzed. The results show that the maximum equivalent stress of the cutter head is 8.216950 MPa, and the allowable stress of the cutter head material is 230 MPa, which was less than the allowable stress of the cutter head. The results indicated that the cutter head can meet the actual work requirements and has high structural reliability. The research process of cutter head arrangement provides a method for solving practical engineering problems, and the numerical simulation results provide a reference for the design of cutter head.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/538/1/012031