Y. Yang, H. Cheng, M. Liu, H. Haeri, J. Fu, R. Hou
{"title":"掘进机盘式铣挖机破岩力分析数值研究","authors":"Y. Yang, H. Cheng, M. Liu, H. Haeri, J. Fu, R. Hou","doi":"10.1007/s11223-024-00659-z","DOIUrl":null,"url":null,"abstract":"<p>The rock-breaking force of the disk cutter is affected by many factors. The greater the rock-breaking force applied to the disk cutter, the higher the breakage efficiency and removal in the rock masses, thereby speeding up the excavation speed and improving construction efficiency. The elastic-plasticity of rock materials will greatly affect the disk cutter rock-breaking force, thereby affecting the efficiency and speed of the TBM excavation process. The commercial finite element software LS-DYNA was performed to simulate the rock breakage mechanism by disk cutter, and the influence of three rock behavior models of elastic-plastic, plastic, and elastic models on the rock-breaking force by disk cutter was studied. Finally, the elastic model with the least influencing parameters was selected to study the effects of rock elastic modulus and disk-cutting depth on rock-breaking force.</p>","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"63 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Investigation of Rock-Breaking Force Analysis of TBM Disk-Cutters\",\"authors\":\"Y. Yang, H. Cheng, M. Liu, H. Haeri, J. Fu, R. Hou\",\"doi\":\"10.1007/s11223-024-00659-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The rock-breaking force of the disk cutter is affected by many factors. The greater the rock-breaking force applied to the disk cutter, the higher the breakage efficiency and removal in the rock masses, thereby speeding up the excavation speed and improving construction efficiency. The elastic-plasticity of rock materials will greatly affect the disk cutter rock-breaking force, thereby affecting the efficiency and speed of the TBM excavation process. The commercial finite element software LS-DYNA was performed to simulate the rock breakage mechanism by disk cutter, and the influence of three rock behavior models of elastic-plastic, plastic, and elastic models on the rock-breaking force by disk cutter was studied. Finally, the elastic model with the least influencing parameters was selected to study the effects of rock elastic modulus and disk-cutting depth on rock-breaking force.</p>\",\"PeriodicalId\":22007,\"journal\":{\"name\":\"Strength of Materials\",\"volume\":\"63 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-07-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Strength of Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11223-024-00659-z\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, CHARACTERIZATION & TESTING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Strength of Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11223-024-00659-z","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CHARACTERIZATION & TESTING","Score":null,"Total":0}
Numerical Investigation of Rock-Breaking Force Analysis of TBM Disk-Cutters
The rock-breaking force of the disk cutter is affected by many factors. The greater the rock-breaking force applied to the disk cutter, the higher the breakage efficiency and removal in the rock masses, thereby speeding up the excavation speed and improving construction efficiency. The elastic-plasticity of rock materials will greatly affect the disk cutter rock-breaking force, thereby affecting the efficiency and speed of the TBM excavation process. The commercial finite element software LS-DYNA was performed to simulate the rock breakage mechanism by disk cutter, and the influence of three rock behavior models of elastic-plastic, plastic, and elastic models on the rock-breaking force by disk cutter was studied. Finally, the elastic model with the least influencing parameters was selected to study the effects of rock elastic modulus and disk-cutting depth on rock-breaking force.
期刊介绍：
Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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