Matches in SemOpenAlex for { <https://semopenalex.org/work/W2017671235> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2017671235 endingPage "53" @default.
- W2017671235 startingPage "42" @default.
- W2017671235 abstract "천공 작업 시 드릴비트 버튼의 타격 속도와 타격 간격은 천공효율을 높이는데 있어 매우 중요한 요소이다. 따라서 본 연구에서는 버튼의 타격 속도 및 간격에 따른 암반 파쇄성능을 분석하기 위하여 홉킨스바 시험기를 이용한 타격시험을 수행하였다. 먼저, 버튼의 타격속도에 따른 암석파쇄 현상을 분석하기 위하여 단일타격 시험을 수행하였고, 수치해석을 통해 단일 타격 시험에 대한 암석의 파쇄과정을 모사하였다. 다음으로 버튼의 타격 간격에 따른 천공효율을 예측하기 위하여 타격 후 설정된 거리만큼 암석 시료를 이동시키고 재차 타격하는 방식으로 다중타격 시험을 수행하였다. 타격시험 후 암석의 천공부피는 레이저 스캐너를 이용하여 측정하였으며, 타격에너지와 천공부피를 통해 천공성능을 계산하였다. 이러한 시험 결과를 바탕으로 직경 102 mm 드릴비트의 1회 타격 시 천공성능을 예측하였다. The percussion rate and spacing of the button of drill bit are very important in maximizing the drilling efficiency. Therefore, a series of percussion tests using Hopkinson bar system was carried out to assess the fragmentation performance against the beat rate and spacing of a drill bit. First, single percussion test complemented with numerical simulation was performed to analyze rock fragmentation phenomenon and to describe the fragmentation process. Next, multiple percussion test that repetitively strike the rock sample moving at predetermined rate was carried out to predict drilling efficiency against the button spacing. After the tests, the fragmented volume of the rock was measured by laser scanner and the drilling performance was analyzed using the calculated percussive energy and measured negative volume. Based on the results, the single impact performance of drill bit with 102 mm diameter was predicted." @default.
- W2017671235 created "2016-06-24" @default.
- W2017671235 creator A5017965464 @default.
- W2017671235 creator A5043835623 @default.
- W2017671235 creator A5044434559 @default.
- W2017671235 creator A5068799024 @default.
- W2017671235 creator A5078563268 @default.
- W2017671235 creator A5082152746 @default.
- W2017671235 date "2013-02-28" @default.
- W2017671235 modified "2023-10-08" @default.
- W2017671235 title "Rock Fragmentation Assessment of a Drill Bit by Hopkinson Bar Percussion Test" @default.
- W2017671235 cites W1506258209 @default.
- W2017671235 cites W1972287148 @default.
- W2017671235 cites W1988366405 @default.
- W2017671235 cites W2023565779 @default.
- W2017671235 cites W2057170287 @default.
- W2017671235 cites W2057897379 @default.
- W2017671235 cites W2058328694 @default.
- W2017671235 cites W2144111896 @default.
- W2017671235 cites W2147495229 @default.
- W2017671235 doi "https://doi.org/10.7474/tus.2013.23.1.042" @default.
- W2017671235 hasPublicationYear "2013" @default.
- W2017671235 type Work @default.
- W2017671235 sameAs 2017671235 @default.
- W2017671235 citedByCount "11" @default.
- W2017671235 countsByYear W20176712352013 @default.
- W2017671235 countsByYear W20176712352014 @default.
- W2017671235 countsByYear W20176712352015 @default.
- W2017671235 countsByYear W20176712352017 @default.
- W2017671235 countsByYear W20176712352020 @default.
- W2017671235 countsByYear W20176712352021 @default.
- W2017671235 countsByYear W20176712352022 @default.
- W2017671235 crossrefType "journal-article" @default.
- W2017671235 hasAuthorship W2017671235A5017965464 @default.
- W2017671235 hasAuthorship W2017671235A5043835623 @default.
- W2017671235 hasAuthorship W2017671235A5044434559 @default.
- W2017671235 hasAuthorship W2017671235A5068799024 @default.
- W2017671235 hasAuthorship W2017671235A5078563268 @default.
- W2017671235 hasAuthorship W2017671235A5082152746 @default.
- W2017671235 hasBestOaLocation W20176712351 @default.
- W2017671235 hasConcept C117011727 @default.
- W2017671235 hasConcept C121332964 @default.
- W2017671235 hasConcept C127313418 @default.
- W2017671235 hasConcept C127413603 @default.
- W2017671235 hasConcept C173736775 @default.
- W2017671235 hasConcept C24890656 @default.
- W2017671235 hasConcept C25197100 @default.
- W2017671235 hasConcept C2778382975 @default.
- W2017671235 hasConcept C38652104 @default.
- W2017671235 hasConcept C41008148 @default.
- W2017671235 hasConcept C66938386 @default.
- W2017671235 hasConcept C78519656 @default.
- W2017671235 hasConcept C81687914 @default.
- W2017671235 hasConceptScore W2017671235C117011727 @default.
- W2017671235 hasConceptScore W2017671235C121332964 @default.
- W2017671235 hasConceptScore W2017671235C127313418 @default.
- W2017671235 hasConceptScore W2017671235C127413603 @default.
- W2017671235 hasConceptScore W2017671235C173736775 @default.
- W2017671235 hasConceptScore W2017671235C24890656 @default.
- W2017671235 hasConceptScore W2017671235C25197100 @default.
- W2017671235 hasConceptScore W2017671235C2778382975 @default.
- W2017671235 hasConceptScore W2017671235C38652104 @default.
- W2017671235 hasConceptScore W2017671235C41008148 @default.
- W2017671235 hasConceptScore W2017671235C66938386 @default.
- W2017671235 hasConceptScore W2017671235C78519656 @default.
- W2017671235 hasConceptScore W2017671235C81687914 @default.
- W2017671235 hasIssue "1" @default.
- W2017671235 hasLocation W20176712351 @default.
- W2017671235 hasOpenAccess W2017671235 @default.
- W2017671235 hasPrimaryLocation W20176712351 @default.
- W2017671235 hasRelatedWork W1569675875 @default.
- W2017671235 hasRelatedWork W2003715458 @default.
- W2017671235 hasRelatedWork W2016865514 @default.
- W2017671235 hasRelatedWork W2052059813 @default.
- W2017671235 hasRelatedWork W2063601432 @default.
- W2017671235 hasRelatedWork W2312544251 @default.
- W2017671235 hasRelatedWork W2333066009 @default.
- W2017671235 hasRelatedWork W2348854327 @default.
- W2017671235 hasRelatedWork W2361609246 @default.
- W2017671235 hasRelatedWork W2548200206 @default.
- W2017671235 hasVolume "23" @default.
- W2017671235 isParatext "false" @default.
- W2017671235 isRetracted "false" @default.
- W2017671235 magId "2017671235" @default.
- W2017671235 workType "article" @default.