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The technical solution for working beneath the protected DB directorate building on the major Stuttgart 21 project
Author(s) -
Vardijan Tomas,
Pradel Michael
Publication year - 2017
Publication title -
geomechanics and tunnelling
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.317
H-Index - 18
eISSN - 1865-7389
pISSN - 1865-7362
DOI - 10.1002/geot.201600085
Subject(s) - stuttgart , demolition , engineering , civil engineering , track (disk drive) , architectural engineering , environmental science , mechanical engineering , soil science
Built in 1914, the listed Reichsbahn directorate building was formerly used as an administrative building by Deutsche Bahn AG in Stuttgart. The Stuttgart 21 Project requires new tracks from the Feuerbach and Bad Cannstatt Tunnels to be built, which branch off from 4 to 8 tracks in the area beneath the DB directorate. Complete demolition of the directorate building was not possible due to the objection of the listed monument authorities, the city administration, the municipal council of architects and the former building owner Vivico. In view of this the preservation of the main building was specified in the planning decision of 28/01/2005. In order for the new station to be constructed by cut‐and‐cover, part of the building had to be secured and underpinned. The design should also take into account two single‐track underground rail tunnels beneath the building and newly constructed temporary retaining structures. The temporary works required to distribute the building loads extended over an area of 800 m 2 , around half of the building footprint, and poses particular constraints on the design and construction approach due to the building preservation order and its inner city proximity.