Analysis of Mechanical Excavation Characteristics by Pre-Cutting Machine Based on Linear Cutting Tests
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Han-eol | - |
dc.contributor.author | Ha, Sang-gui | - |
dc.contributor.author | Rehman, Hafeezur | - |
dc.contributor.author | Yoo, Han-kyu | - |
dc.date.accessioned | 2023-02-28T01:33:45Z | - |
dc.date.available | 2023-02-28T01:33:45Z | - |
dc.date.issued | 2023-01 | - |
dc.identifier.issn | 2076-3417 | - |
dc.identifier.issn | 2076-3417 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/111593 | - |
dc.description.abstract | Mechanical methods of tunnel excavation are widely used because of their high excavation output, and the selection of appropriate technology depends on ground composition and project-related features. Compared with tunnel boring machines (TBMs) and roadheaders, mechanical pre-cutting machines are used in tunnel widening and have proven to be reliable in tunnel capacity expansion. Compared to other machines, the excavation characteristics of pre-cutting machines are not systematically analyzed because of their rare use. In this study, the excavation characteristics of a pre-cutting machine are analyzed in a laboratory based on linear cutting tests performed on four rock specimens with different uniaxial compressive strengths. During testing, changes in tool forces, cutting volume, and specific energy are determined while maintaining different penetration depths, spacings, and rock strengths. The variations in these variables are selected accordingly. The results showed high similarity with the case of TBMs and roadheaders. However, in the excavation by the pre-cutting machine, the ratios of the peak-to-mean cutting forces and cutting-to-normal forces reached a maximum value at a specific s/p (spacing and penetration ratio), which is related to the optimal cutting conditions. This study can provide useful information for the operation and design of pre-cutting machines. | - |
dc.format.extent | 23 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | MDPI | - |
dc.title | Analysis of Mechanical Excavation Characteristics by Pre-Cutting Machine Based on Linear Cutting Tests | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.3390/app13021205 | - |
dc.identifier.scopusid | 2-s2.0-85146616766 | - |
dc.identifier.wosid | 000916717300001 | - |
dc.identifier.bibliographicCitation | Applied Sciences-basel, v.13, no.2, pp 1 - 23 | - |
dc.citation.title | Applied Sciences-basel | - |
dc.citation.volume | 13 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 23 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Engineering, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | ROCK PROPERTIES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | PICK | - |
dc.subject.keywordPlus | PREDICTION | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | SANDSTONE | - |
dc.subject.keywordPlus | STRESS | - |
dc.subject.keywordAuthor | linear cutting test | - |
dc.subject.keywordAuthor | pre-cutting machine | - |
dc.subject.keywordAuthor | excavation machine | - |
dc.subject.keywordAuthor | tool forces | - |
dc.subject.keywordAuthor | cutting volume | - |
dc.subject.keywordAuthor | specific energy | - |
dc.identifier.url | https://www.mdpi.com/2076-3417/13/2/1205 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.