Summary
The planned network for the Munich subway system has a total length of about 100 km with 106 stations. At present 46 km of subway and 50 stations are in operation. A further 17 km and 18 stations are under construction. The annual volume of construction work has reached a total of approximately 300 million DM.
A stretch of 21 km has been constructed using shotcrete support. A part of this work still has to be completed.
In the paper, the method of tunnelling using shotcrete is presented in its total context, whereby the important aspects are discussed under the following themes:
Overview of the construction project as a whole with reference to finance, permitting procedures and realisation. Cut-and-cover and mining techniques. The construction of single-track tunnel and the excavation of large cross-sections, switches and sidings, different geotechnical procedures in dealing with water, especially compressed air operations.
Experiences with contract practices, construction, questions of safety, quality and cost control, damage analysis and comparison of costs.
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The work is based on 13 years of application and development.
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Hochmuth, W., Krischke, A. & Weber, J. Subway construction in Munich, developments in tunnelling with shotcrete support. Rock Mech Rock Engng 20, 1–38 (1987). https://doi.org/10.1007/BF01019509
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DOI: https://doi.org/10.1007/BF01019509