The Second metro line in Warsaw – lessons learnt

Monika Mitew-Czajewska , Anna Ewa Siemińska-Lewandowska

Abstract

The construction of 6.3 km long central part of 2ndmetro line in Warsaw was completed in September 2014 (7 stations - out of which three 25m deep stations - built using cut and cover method; two single-track tunnels constructed using four EPB TBMs as well as a short NATM section with soil freezing below the existing road tunnel). Central section of the 2ndmetro line was opened to public after verification and testing in March 2015. Design and build tender for the extension of this line in East (three stations) and West direction (three stations) was announced with total length of running tunnels - approx. 5 km. Detailed description of a very complex geotechnical context, different construction methods, challenges encountered and solved during construction and finally lessons learnt on this interesting project are presented in the paper.
Author Monika Mitew-Czajewska IDM
Monika Mitew-Czajewska,,
- The Institute of Roads and Bridges
, Anna Ewa Siemińska-Lewandowska IDM
Anna Ewa Siemińska-Lewandowska,,
- The Institute of Roads and Bridges
Pages3148-3157
Publication size in sheets0.5
Book ITA-AITES World Tunnel Congress 2016, 2016, Society for Mining, Metallurgy and Exploration, ISBN 978-1-5108-2262-7, 3277 p.
Keywords in EnglishTunnels, Soil mechanics
Languageen angielski
Score (nominal)0
Citation count*2 (2018-02-06)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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