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Browsing by Subject "tunnelling"

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    Item type:Article, Access status: Open Access ,
    A case study of the TS-26 tunnel – the longest non-urban road tunnel in Poland using NATM technology
    (Wydawnictwa AGH, 2023) Świątek, Beata
    The article describes in detail the legal, technical and geological conditions faced by the designers and contractors of the TS-26 tunnel, located within the S3 expressway. The tunnel, which is the longest non-urban road tunnel in Poland, was constructed using the New Austrian Tunnel Construction Method (NATM). The project represented a considerable engineering challenge due to the geological conditions and the need to ensure the highest safety standards. The article describes the design process, including detailed geological analyses, and the construction phases of the tunnel, which included excavation, construction of the primary and secondary lining, and the installation of advanced safety systems. The TS-26 tunnel is a key element of the road infrastructure that will significantly improve communication in the region and support the economic development of Lower Silesia.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analiza warunków stateczności tunelu w masywie skalnym o strukturze blokowej dla sytuacji tunelu metra w Nowym Jorku (rejon Manhattan)
    (2007) Jakubowski, Jacek; Stypulkowski, Jacek
    The paper presents discontinuities effect on tunnel stability conditions analyzed with MSB numerical simulation method. Based on statistical description of discontinuities network the MSB method and code creates representation of a blocky structure around a tunnel and analyzes it within a general statistical simulation scheme. Comprehensive description of geology in the vicinity of underground tunnel in Manhattan, New York was a basis for building a statistical model of discontinuities network followed by numerical simulation of stability conditions. Results for two different tunnel directions and for unsupported and rock bolted tunnel were compared. Information on observed geometry, location and size of real unstable blocks around the excavated tunnel allowed comparing computation results with observations.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Koncepcja technologii zabezpieczania wykopu dla płytko zlokalizowanych tuneli kolejowych formowanych w formach traconych
    (Wydawnictwa AGH, 2009) Michałek, Marian
    The conception of temporary lining for tunnel construction in open trench technology was showed here. In this case the train tunnel is constructed with prefabricated sections formed partially at a place of its localization. Section of the tunnel consists of form filled with concrete directly in the trench. The construction which make possible manipulation of the empty forms in the trench was also presented.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Sylikatowe żywice organiczno-mineralne w budownictwie podziemnym i tunelowym
    (2007) Stachoń, Witold; Chmura, Janusz
    Organic-mineral silicate resins are a specific group of the injection-media widely at present used in underground construction and tunnelling. Their common feature is the water environment has no influence on the course of the reaction. The distinction between them and the polyurethane resins (PUR) is they do not transfer the flame and belong to the group of self-extinguishing resins. Both the characterization and examples of the use of organic-mineral silicate resins have been given in the paper.