Continuous Excavation Type TBM Parts Modification and Control Technology for Improving TBM Performance

Young-Tae Choi; Dong-Geon Lee; Mun-Gyu Kim; Joo-Young Oh; Jung-Woo Cho

doi:10.7474/TUS.2022.32.6.345

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2022 Vol.32, Issue 6 Next Page

Technical Note

Continuous Excavation Type TBM Parts Modification and Control Technology for Improving TBM Performance TBM 굴진향상을 위한 연속굴착형 TBM 부품개조 및 제어기술 소개

31 December 2022. pp. 345-352

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Abstract

The existing NATM (New Austrian Tunneling Method) has induced civil compliants due to blasting vibration and noise. Machanized excavation methods such as TBM (Tunnel Boring Machine) are being adopted in the planning and construction of tunneling projects. Shield TBM method is composed of repetition processes of TBM excavation and segment installation, the machine has to be stopped during the later process. Consecutive excavation technology using helical segment is under developing to minimize the stoppage time. The modification of thrust jacks and module are planned to ensure the advance force acting on the inclined surface of helical segment. Also, the integrated system design of hydraulic circuit will be remodeled. This means that the system deactivate the jacks on the installing segment while the others automatically act the thrusting forces on the existing segments. This report briefly introduces the mechanical research part of the current consecutive excavation technological development project of TBM.

Keywords

TBM

Consecutive excavation technology

Thrust jack

Machine remodeling

Reliability

도심지 터널 건설에서 발파공법은 민원이 제기되는 문제점이 있어 적용에 제약받고 있다. 이에 대한 대안으로 TBM 및 기계굴착 공법 적용이 필수적으로 검토되고 있다. 이 중 쉴드 TBM(Tunnel Boring Machine)은 굴진과 세그먼트 체결이 번갈아 반복되며 굴진하는 공정을 가지고 있는데, 세그먼트 체결동안 굴진을 멈추게 된다. 이러한 가동 정지시간을 최소화하고자 세그먼트 체결 중에도 가동할 수 있는 연속굴착형 TBM 기술이 개발되고 있다. 나선형 세그먼트의 굴진 반력을 확보하기 위해 추진잭을 개조하고 신뢰성을 확보하는 연구가 진행 중이다. 또한 체결 중 세그먼트를 제외한 나머지 부분의 추진잭을 가동하는 유압제어 및 유압시스템 설계기술이 개발될 예정이다. 본 보고는 연속굴착형 TBM 과제 중 부품개조 및 유압제어 기술에 대한 일부 내용을 소개한다.

키워드

TBM

연속굴착

추진잭

장비개조

신뢰성

References

Choi, S.W., Lee, C.H., Kang, T.H., and Chang, S.H., 2020, Current Status of Technical Development for TBM Simulator, Tunnel and Underground Space, 30(5), 433-445.

Jang, S.H., Kim, S.H., Lee, S.W., and Bae, G.J., 2010, Construction of Long Undersea Tunnel by Shield TBM, Magazine of Korean Tunnelling and Underground Space Association, 12(3), 9-22.

Kim, Y.G., Moon, J.S., Shim, J.B., Lee, S.B., Choi, C.R., and Chun, Y.C., 2011, Comparative risk analysis of NATM and TBM for mixed-face large-diameter urban tunneling, Journal of Korean Tunnelling and Underground Space Association, 13(1), 19-32.

Lee, H.S., Na, Y.M., Jang, H.S., Suk, I.H., Kang, S.H., Kim, H.T., and Park, J.K., 2019, A Study on the Stability of Shield TBM Thrust Jack in the Behavior of Operating Fluid According to Thrust Force, Journal of the Korean Society of Manufacturing Process Engineers, 18(1), 38-45. 10.14775/ksmpe.2019.18.1.038

Lee, S.W., Jang, S.H., and Choe, S.U., 2011, Forecasting Future Demand for TBM Tunnels in Korea, Geotechnical Engineering, 27(2), 18-26.

Park, J.S., 2021, Focusing on the comparison between Gripper TBM and Slurry Shield TBM, Magazine of Korean Tunnelling and Underground Space Association, 23(1), 44-60.

Science & Technology Strategy Institute, 2021, Consecutive Excavation Technological Development Project of Tunnel Boring Machine,Ministry of Land, Infrastructure and Transport, 136-155.

Information

Publisher :Korean Society for Rock Mechanics and Rock Engineering
Publisher(Ko) :한국암반공학회
Journal Title :Tunnel and Underground Space
Journal Title(Ko) :터널과 지하공간
Volume : 32
No :6
Pages :345-352
Received Date : 2022-10-24
Revised Date : 2022-11-01
Accepted Date : 2022-11-03
DOI :https://doi.org/10.7474/TUS.2022.32.6.345

Tunnel and Underground SpaceISSN:1225-1275(Print) 2287-1748(Online)한국암반공학회

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