Tunnelling and Underground Space Technology 74 (2018) 41–59 Contents lists available at ScienceDirect Tunnelling and Underground Space Technology journal homepage: www.elsevier.com/locate/tust Application of the NATM method in the road tunneling works in diﬃcult geological conditions – The Carpathian ﬂysch Zbigniew Niedbalski, Piotr Małkowski , Tadeusz Majcherczyk AGH University of Science and Technology, Faculty of Mining and Geoengineering, 30-059 Kraków, al. Mickiewicza 30, Poland ARTICLE I NFO ABSTRACT Keywords: The paper presents the characteristics of geological, geotechnical and construction conditions in the Laliki tunnel NATM in Carpathian ﬂysch. Until now, it is the only tunnel constructed there; yet, another one is underway, and several Tunnel primary support more are in the design stage in Poland and Slovakia. Therefore, the experience gained during construction of this Rock mass quality tunnel using NATM method are extremely important from the point of view of further tunneling works. The Tunnel deformations analysis has shown that the ﬂysch formation met in Laliki is diﬀerent from e.g. in Greece which is better known Surface deformations from tunneling. The changes in geological and engineering conditions along the tunnel, mainly in dip of rock layers, approximately between 70 and 85°, and a varying lithology, led to diversiﬁcation of
Tunnelling and Underground Space Technology – Elsevier
Published: Apr 1, 2018
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