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Development of simulation equipment system on EPB shield TBM hood operation

토압식 쉴드TBM의 후드부 시뮬레이션 장비 시스템 개발에 대한 연구

  • Kim, Sang-Hwan (Dept. of Civil Engineering, Hoseo University) ;
  • Oh, Tae-Sang (Sambo Engineering co. LTD. Seoul National University of Science & Technology, Graduate school of railroad) ;
  • Park, Soo-Hwan (Dept. of Civil Engineering, Hoseo University) ;
  • Lee, Choong-Yeoul (Dept. of Civil Engineering, Hoseo University) ;
  • Park, Jong-Kwan (Dept. of Civil Engineering, Seoul National University of Science & Technology)
  • 김상환 (호서대학교 토목공학과) ;
  • 오태상 ((주)삼보기술단, 서울과학기술대학교 철도전문대학원) ;
  • 박수환 (호서대학교 토목공학과) ;
  • 이충렬 (호서대학교 토목공학과) ;
  • 박종관 (서울과학기술대학교 철도전문대학원 철도건설공학과)
  • Received : 2014.03.05
  • Accepted : 2014.03.18
  • Published : 2014.03.30

Abstract

This paper presents the development of simulation system on EPB shield TBM Hood operation. In recent, EPB shield TBM is widely used in the tunnel construction. Since the hood system of the EPB shield TBM is most important to excavate the tunnel, it is necessary to perform the simulation of hood system to investigate the design and operation parameters prior to tunnel construction. In order to carry out this study, the scaled simulation system was designed and developed. The model tests were performed to verify the developed system. During the simulation, the earth pressures developed in the chamber during tunnelling were measured to evaluate the operation technique. The test results obtained by the developed simulation system show clearly the similar behaviour of TBM hood compared with the field data. It was also found that the ground loss during tunnelling is dependent on the change of earth pressure in chamber. Therefore, the simulation system developed in this study will be very useful to evaluate the operation technique of the TBM hood prior to tunnel construction. In addition, this system will be applied in a various condition of ground to get the operating information.

본 논문은 토압식 쉴드TBM(EPB shield TBM)의 후드부에 대한 시뮬레이션 시스템 개발에 대한 연구결과이다. 최근 토압식 쉴드TBM은 터널굴착에 많이 활용되고 있다. 토압식 쉴드TBM의 후드부 시스템은 터널굴착에서 매우 중요하기 때문에 후드부 시스템의 설계 및 operation parameter의 평가를 위하여서는 시공전에 사전 시뮬레이션이 요구된다. 본 연구를 위하여 모형 시뮬레이션 장비 시스템을 설계 개발하였다. 개발된 시스템의 검증을 위하여 모형실험을 실시하였으며, 개발된 시스템을 이용하여 얻은 결과는 현장에서 얻을 수 있는 토압식 쉴드TBM의 거동과 유사한 결과를 보여주었다. 이 결과로부터 토압식 쉴드TBM 굴진시 지반 loss는 후드부 챔버에 발생되는 토압의 변화에 많이 의존되는 것으로 나타났다. 따라서 본 연구에서 개발된 시뮬레이션 장비 시스템은 토압식 쉴드TBM공사 전 operation parameter를 평가하는데 매우 유용하게 활용될 수 있을 것으로 기대된다. 또한 다양한 지반조건에서의 TBM operation에 관한 정보를 제공할 것이다.

Keywords

Acknowledgement

Supported by : 한국건설교통기술평가원

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