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A Design and Operation of EPBM Applied in Fort Canning Boulder Bed of Singapore

싱가포르 포트캐닝 전석층에 적용된 EPBM의 설계 및 시공

  • Received : 2015.08.21
  • Accepted : 2015.09.15
  • Published : 2015.10.31

Abstract

This paper introduces the design and operational considerations for TBM tunneling in boulder bed which poses significant problems in terms of advance rate and machine wear. Managing these problems is difficult since normal soil investigation techniques do not accurately predict the presence and frequency of boulders. This has leads to considerable extra costs and delays during construction. In this paper, EPBM design and operational parameters, cutter wear characteristics and soil conditioning method in soft ground condition were studied and key successes were highlighted for future projects in similar ground condition.

Keywords

Tunneling in boulder bed;EPBM design;Cutter wear;Soil conditioning

References

  1. Osborne N.H., C. Knight Hassell, L.C. Tan and R. Wong, 2008, A review of the performance of the tunneling for Singapore's circle line project, World Tunnel Congress 2008. Vol 3, 1497-1508.
  2. Arup Singapore Pte Ltd, 2010, C937 Geotechnical Interpretative Baseline Report.
  3. Shirlaw J.N., P.B. Broms, S Chandransegaran, J. Daley, K. Orihara, G.V.R. Raju, S.K. Tang, I.H. Wong, K.S. Wong and Kyi Yu, 2003, The Fort Canning Boulder Bed, Underground Singapore 2003.