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  • Helsinki Subway Western Expansion

    The project involves around 14 km of tunnels, 7 stations and the removal of around 3 million cubic meters of rock. The tunnels and stations will be excavated by drill & blast and reinforced with rockbolts and shotcrete. A part of the tunnels and the Koivusaari station will be located under the sea. The metro line travels mostly under urban areas with high rise buildings and other critical structures.

  • Company

    Kalliosuunnittelu oy Rockplan LTD, Finland

    Software and Solution

    midas GTS
    Performing construction stage analysis for a new tunnels and underground structures. Also the foundation pressure of existing structures on the tunnels will be monitored and the structure of tunnels will be optimized accordingly.

  • Final Disposal Facility Posiva’s ONKALO

    The final disposal facility consists of two sections:
    1- The aboveground encapsulation plant where spent nuclear fuel is received, dried and packed into final disposal canisters, and
    2- The repository located deep inside the bedrock, in which the most important section are the tunnels where the encapsulated spent nuclear fuel is disposed of.

  • Company

    Kalliosuunnittelu oy Rockplan LTD, Finland

    Software and Solution

    3D FEM analysis was performed to investigate the overall stability of the hard rock excavations in depths up to 500m. And to optimize rock support system. Also impact of vibration due to blasting and groundwater level on underground cavern was simulated.

  • Trans-Hudson Express, Station Cavern (34th street)

    Two types of analysis were performed based on different 3D model files. To monitor the stability of lining structures and rock bolts, at structural level, the final status of the cavern was modeled and to obtain the general stability and settlements of the soil layers, at geotechnical level, construction sequences of the cavern were modeled.

  • Company

    Parsons Brinckerhoff, USA

    Software and Solution

    midas GTS
    Performing construction stage analysis to check the settlement in conjunction with performing structural analysis to check the stability of lining structure for a new subway complex

  • Excavated tunnel with TBM-EPB in Urban Area (Madrid M30)

    The principal aim is to present a way that enables the 3D numerical analyses, based on finite element technique, to be an useful tool for prediction and mitigation of the impact of TBM excavated tunnel in urban area.

  • Company

    Undisclosed

    Software and Solution

    midas GTS
    Simulation of settlement induced by the use of TBM-EPB technology

  • King’s Cross Station

    The section of the existing tunnel where the shaft intersects is first strengthened with block work. The cylindrical section of the shaft is built with segmental lining. Then the tapered section of the shaft is built in 1 m deep stages and lined with sprayed concrete. After sprayed concrete strengthening, the connection is achieved and the block work is removed.

  • Company

    Consultancy for Morgan=Est, UK

    Software and Solution

    midas GTS
    Assessment of the effects of the shaft construction on the existing tunnel and design of shaft lining:
    - Construction stage analysis
    - Check displacements and lining forces in the existing tunnel
    - Check forces in the sprayed concrete lining of the shaft