Proceedings of The 2nd International Conference On Advance And Scientific Innovation, ICASI 2019, 18 July, Banda Aceh, Indonesia

Research Article

Tunnel Stability Analysis Based on Temporary Support Modeling in The Construction of Hasang Hepp in Toba Samosir District North Sumatra Province

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  • @INPROCEEDINGS{10.4108/eai.18-7-2019.2288567,
        author={Tengku  Tibri and M. Eka Onwardana and Ediyasa  Ardiansyah and Heri  Adhahari and Lismawaty  Lismawaty and Bintang  Wijaya},
        title={Tunnel Stability Analysis Based on Temporary Support Modeling in The Construction of Hasang Hepp in Toba Samosir District North Sumatra Province},
        proceedings={Proceedings of The 2nd International Conference On Advance And Scientific Innovation, ICASI 2019, 18 July, Banda Aceh,  Indonesia},
        publisher={EAI},
        proceedings_a={ICASI},
        year={2019},
        month={11},
        keywords={appropriate supporting tunnel rock mass rating q-system modeling phase2 unwedge},
        doi={10.4108/eai.18-7-2019.2288567}
    }
    
  • Tengku Tibri
    M. Eka Onwardana
    Ediyasa Ardiansyah
    Heri Adhahari
    Lismawaty Lismawaty
    Bintang Wijaya
    Year: 2019
    Tunnel Stability Analysis Based on Temporary Support Modeling in The Construction of Hasang Hepp in Toba Samosir District North Sumatra Province
    ICASI
    EAI
    DOI: 10.4108/eai.18-7-2019.2288567
Tengku Tibri1,*, M. Eka Onwardana1, Ediyasa Ardiansyah1, Heri Adhahari1, Lismawaty Lismawaty2, Bintang Wijaya3
  • 1: Mining Department– Institut Teknologi Medan. Jl. Gedung Arca No. 52. Medan. Indonesia
  • 2: Geology Department – Institut Teknologi Medan. Jl. Gedung Arca No. 52. Medan. Indonesia
  • 3: Fresh Graduate in Mining Department – Institut Teknologi Medan. Jl. Gedung Arca No. 52. Medan. Indonesia
*Contact email: tengku.tibri@gmail.com

Abstract

Excavation at the tunnel of Hydroelectric Power Plant along 2,650 m has been conducted in Nassau Sub-district Toba Samosir District North Sumatra Province. To determine an appropriate supporting to the tunnel, simulation of supporting system variation using Phase2 and Unwed must be taken. Displacement analysis is conducted at four point, likes at the point at the roof of the tunnel, point b between roof and the tunnel wall, point c on the tunnel wall, and point d on the corner side of the tunnel floor. There are 16 variation of supporting system that implemented to the model. Conclusion from the simulation shows the appropriate supporting system is recommended 1 rockbolt along 6 m, random space, and shotcrete with thickness 50 mm on floor and the wall.