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2020 Vol.22, Issue 3

Research Paper

A study on the thrust force and torque calculation models in the design of shield TBM

쉴드 TBM 설계 시 추력과 토크 산정식들에 대한 고찰

Song-Hun Chong1*
,
Seung-Hun Lee2
,
Hee-Hwan Ryu3
,
Hun-Tae Kim4
정 성훈1*
,
이 승훈2
,
류 희환3
,
김 훈태4
1Assistant Professor, Dept. of Civil Engineering, Sunchon National University
2Undergraduate Student, Dept. of Civil Engineering, Sunchon National University
3Senior Researcher, Structural & Seismic Tech. Group, Next Generation Transmission & Substation Laboratory, KEPCO Research Institute
4TBM Division Team Manager of Energy & Machinery Korea Co., Ltd.
1정회원, 국립순천대학교 토목공학과 조교수
2비회원, 국립순천대학교 토목공학과 학부과정
3정회원, 한국전력공사 전력연구원 차세대 송변전연구소 구조내진연구실 선임연구원
4정회원, 이엠코리아(주) TBM영업팀 팀장
* Corresponding Author
31 May 2020. pp. 219-237
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Abstract

Rapid economic development and urban population growth have been increasing the necessity for underground space exploration and utilization due to the need of upgrading and expanding the existing infrastructures. TBM has been widely used to construct underground structures with high advance rate and minimal ground disturbance. Two important design parameters, which are available thrust capacity and cutterhead torque, should be estimated for any project in addition to proper selection of TBM type. However, the conventional thrust force and torque estimation model only depends on the empirical equation, which hinders the design process of the optimal thrust hydraulic system and the appropriate hydraulic components. In this study, four thrust and torque calculation models are derived and explained. For TBM design practice, the four estimation modelskeh s are compared and discussed.

Keywords
Shield TBM
Thrust capacity and cutterhead torque
Empirical equation
Thurst and torque calculation model

급속한 경제 발전과 도시 인구 증가는 기존의 인프라의 개선과 확대를 위한 지하 공간 활용의 필요성을 증가 시킨다. 쉴드 TBM (Tunnel Boring Machine)은 높은 굴진율과 최소한의 지반 교란이 필요한 지하 구조물 설계에 널리 이용되어 왔다. 허용 추력과 커터헤드 토크는 적절한 TBM 타입을 선택에 있어서, 중요한 설계 인자 이므로 TBM 공사 시에 적절히 산정되어야 한다. 하지만, 기존의 추력과 토크의 추정 모델은 오직 경험적인 인자와 TBM 직경에만 의존하고 있는 실정이다. 이는 최적의 추력 유압 시스템과 적절한 유압 부품의 선택을 어렵게 한다. 본 연구에서는 4개의 추력 및 토크 계산 모델을 설명하고 정리하였으며, 각각의 모델들을 비교 및 논의하였다.

키워드
쉴드 TBM
허용 추력과 커터헤드 토크
경험적인 식
추력 및 토크 계산 모델
References
1
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 22
  • No :3
  • Pages :219-237
  • Received Date : 2020-04-10
  • Revised Date : 2020-04-21
  • Accepted Date : 2020-04-29
  • DOI :https://doi.org/10.9711/KTAJ.2020.22.3.219
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