Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis
During tunnel excavation using a tunnel boring machine (TBM), the interaction between the cutter and the rock causes the cutterhead to generate abrupt vibrations, which could lead to engineering problems, such as bearing seal failure and even cutterhead cracking. In this study, large-scale physical...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2023-03-01
|
| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878132231159971 |
| _version_ | 1797870141620355072 |
|---|---|
| author | Zhenxing Yang Luqi Wang Jianjun Zhou Dongdong Li Kai Zhang Xinqiang Guo |
| author_facet | Zhenxing Yang Luqi Wang Jianjun Zhou Dongdong Li Kai Zhang Xinqiang Guo |
| author_sort | Zhenxing Yang |
| collection | DOAJ |
| description | During tunnel excavation using a tunnel boring machine (TBM), the interaction between the cutter and the rock causes the cutterhead to generate abrupt vibrations, which could lead to engineering problems, such as bearing seal failure and even cutterhead cracking. In this study, large-scale physical model tests with various cutter spacings were performed to study the vibration and load characteristics of the cutterhead during the rock-breaking process. Through a TBM modal comprehensive test bench, the real-time acceleration of the cutterhead was obtained using a monitoring system. The test results showed that the complete time-domain curves were stepped and periodic. When the cutterhead was stuck or rock peeled off during the excavation, the monitoring curves showed abrupt vibrations, which were mainly concentrated at 0–3 Hz and were typical low-frequency vibrations. Taking measured data as the driving parameter, the real-time mechanical characteristics of the cutterhead were determined through transient dynamic analysis. Numerical simulation results showed that the vibration trend during excavation was the superposition of random vibrations generated by rock breaking and tunneling without rock cutting. During the tunneling process, the wear of the edge cutters should be highlighted in actual construction. The related methods and results can provide an essential reference for the selection of cutterheads. |
| first_indexed | 2024-04-10T00:22:39Z |
| format | Article |
| id | doaj.art-e9fa2fd0edad4d6b9d83a78756b0b30d |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-04-10T00:22:39Z |
| publishDate | 2023-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-e9fa2fd0edad4d6b9d83a78756b0b30d2023-03-15T17:33:30ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402023-03-011510.1177/16878132231159971Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysisZhenxing Yang0Luqi Wang1Jianjun Zhou2Dongdong Li3Kai Zhang4Xinqiang Guo5State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou, ChinaSchool of Civil Engineering, Chongqing University, Chongqing, ChinaState Key Laboratory of Shield Machine and Boring Technology, Zhengzhou, ChinaCollege of Geoscience and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou, ChinaXinjiang Erqisi River Investment and development (Group) Co., Ltd., Wulumuqi, ChinaDuring tunnel excavation using a tunnel boring machine (TBM), the interaction between the cutter and the rock causes the cutterhead to generate abrupt vibrations, which could lead to engineering problems, such as bearing seal failure and even cutterhead cracking. In this study, large-scale physical model tests with various cutter spacings were performed to study the vibration and load characteristics of the cutterhead during the rock-breaking process. Through a TBM modal comprehensive test bench, the real-time acceleration of the cutterhead was obtained using a monitoring system. The test results showed that the complete time-domain curves were stepped and periodic. When the cutterhead was stuck or rock peeled off during the excavation, the monitoring curves showed abrupt vibrations, which were mainly concentrated at 0–3 Hz and were typical low-frequency vibrations. Taking measured data as the driving parameter, the real-time mechanical characteristics of the cutterhead were determined through transient dynamic analysis. Numerical simulation results showed that the vibration trend during excavation was the superposition of random vibrations generated by rock breaking and tunneling without rock cutting. During the tunneling process, the wear of the edge cutters should be highlighted in actual construction. The related methods and results can provide an essential reference for the selection of cutterheads.https://doi.org/10.1177/16878132231159971 |
| spellingShingle | Zhenxing Yang Luqi Wang Jianjun Zhou Dongdong Li Kai Zhang Xinqiang Guo Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis Advances in Mechanical Engineering |
| title | Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis |
| title_full | Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis |
| title_fullStr | Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis |
| title_full_unstemmed | Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis |
| title_short | Mechanical characteristics of a tunnel boring machine cutterhead during rock breaking: Physical model tests and transient dynamic analysis |
| title_sort | mechanical characteristics of a tunnel boring machine cutterhead during rock breaking physical model tests and transient dynamic analysis |
| url | https://doi.org/10.1177/16878132231159971 |
| work_keys_str_mv | AT zhenxingyang mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis AT luqiwang mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis AT jianjunzhou mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis AT dongdongli mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis AT kaizhang mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis AT xinqiangguo mechanicalcharacteristicsofatunnelboringmachinecutterheadduringrockbreakingphysicalmodeltestsandtransientdynamicanalysis |