Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China
Abstract Understanding the distribution of cutting force provides a foundation for the design and optimization of cutterhead layout. The simulation of rotary cutting with a large cutting radius remains a challenge for laboratory tests. In this study, taking the driving condition of the Mawan Tunnel...
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| Format: | Article |
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Springer
2024-10-01
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| Series: | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
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| Online Access: | https://doi.org/10.1007/s40948-024-00886-3 |
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| author | Long-Chuan Deng Xiao-Zhao Li Wentao Xu Chi Zhang Qian-Wei Zhuang Fu-Qing Li Qiang Zhou |
| author_facet | Long-Chuan Deng Xiao-Zhao Li Wentao Xu Chi Zhang Qian-Wei Zhuang Fu-Qing Li Qiang Zhou |
| author_sort | Long-Chuan Deng |
| collection | DOAJ |
| description | Abstract Understanding the distribution of cutting force provides a foundation for the design and optimization of cutterhead layout. The simulation of rotary cutting with a large cutting radius remains a challenge for laboratory tests. In this study, taking the driving condition of the Mawan Tunnel located in the Guangdong-Hong Kong-Macao Greater Bay Area as a case study, a full-scale rotary cutting platform with large cutting radius was used to investigate the rock-breaking effects. Rotary cutting with cutting depths of 1–8 mm and cutting radii of 200–1400 mm were carried out on the granite testing platform using a 19-in disc cutter. The normal force, rolling force, and side force during the cutting process were systematically monitored. Moreover, the time–frequency characteristics of the rock breaking process and the effects of cutting depth, cutting radius and stress state on the average and peak loads were investigated. The results show that the average normal force and rolling force increased with increasing cutting depth, while the side force was less affected by cutting depth through the Boltzman model analysis. The average normal force and rolling force were not significantly affected by the cutting radius, but the average side force decreased as a power function with increasing cutting radius, and showed a stable side force when the installation radius exceeded 1000 mm. The dominant frequency of the cutting force was 0–1.2 Hz, exhibiting notable low-frequency characteristics. Additionally, the ratio of peak to average (RPA) with respect to triaxial cutting force demonstrated an increase with the growth of cutting depth, while RPA in terms of side force exhibited a corresponding growth with the increasing cutting radius. In particular, the cutting force characteristics of the cutterhead obtained in this study can inform the layout of disc cutters and real-life TBM operations, thereby avoiding severe overloading of internal disc cutters. |
| format | Article |
| id | doaj-art-a1fbc314723f4232936b3db7deaa4d32 |
| institution | OA Journals |
| issn | 2363-8419 2363-8427 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Springer |
| record_format | Article |
| series | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
| spelling | doaj-art-a1fbc314723f4232936b3db7deaa4d322025-08-20T02:17:46ZengSpringerGeomechanics and Geophysics for Geo-Energy and Geo-Resources2363-84192363-84272024-10-0110112010.1007/s40948-024-00886-3Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, ChinaLong-Chuan Deng0Xiao-Zhao Li1Wentao Xu2Chi Zhang3Qian-Wei Zhuang4Fu-Qing Li5Qiang Zhou6School of Earth Sciences and Engineering, Nanjing UniversitySchool of Earth Sciences and Engineering, Nanjing UniversitySchool of Earth Sciences and Engineering, Nanjing UniversityShanghai Tunnel Engineering Co. LtdShanghai Shield Research Centre Co., LtdState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and TechnologyYuhe Construction Co., LtdAbstract Understanding the distribution of cutting force provides a foundation for the design and optimization of cutterhead layout. The simulation of rotary cutting with a large cutting radius remains a challenge for laboratory tests. In this study, taking the driving condition of the Mawan Tunnel located in the Guangdong-Hong Kong-Macao Greater Bay Area as a case study, a full-scale rotary cutting platform with large cutting radius was used to investigate the rock-breaking effects. Rotary cutting with cutting depths of 1–8 mm and cutting radii of 200–1400 mm were carried out on the granite testing platform using a 19-in disc cutter. The normal force, rolling force, and side force during the cutting process were systematically monitored. Moreover, the time–frequency characteristics of the rock breaking process and the effects of cutting depth, cutting radius and stress state on the average and peak loads were investigated. The results show that the average normal force and rolling force increased with increasing cutting depth, while the side force was less affected by cutting depth through the Boltzman model analysis. The average normal force and rolling force were not significantly affected by the cutting radius, but the average side force decreased as a power function with increasing cutting radius, and showed a stable side force when the installation radius exceeded 1000 mm. The dominant frequency of the cutting force was 0–1.2 Hz, exhibiting notable low-frequency characteristics. Additionally, the ratio of peak to average (RPA) with respect to triaxial cutting force demonstrated an increase with the growth of cutting depth, while RPA in terms of side force exhibited a corresponding growth with the increasing cutting radius. In particular, the cutting force characteristics of the cutterhead obtained in this study can inform the layout of disc cutters and real-life TBM operations, thereby avoiding severe overloading of internal disc cutters.https://doi.org/10.1007/s40948-024-00886-3Full-scale cutting testTBMCutting force distributionDisc cutterRock-breaking processMawan tunnel |
| spellingShingle | Long-Chuan Deng Xiao-Zhao Li Wentao Xu Chi Zhang Qian-Wei Zhuang Fu-Qing Li Qiang Zhou Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China Geomechanics and Geophysics for Geo-Energy and Geo-Resources Full-scale cutting test TBM Cutting force distribution Disc cutter Rock-breaking process Mawan tunnel |
| title | Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China |
| title_full | Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China |
| title_fullStr | Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China |
| title_full_unstemmed | Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China |
| title_short | Full-scale test of disc cutter rotary cutting in TBM tunnelling: a case study of Mawan granite in Shenzhen, China |
| title_sort | full scale test of disc cutter rotary cutting in tbm tunnelling a case study of mawan granite in shenzhen china |
| topic | Full-scale cutting test TBM Cutting force distribution Disc cutter Rock-breaking process Mawan tunnel |
| url | https://doi.org/10.1007/s40948-024-00886-3 |
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