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1996 | OriginalPaper | Buchkapitel

Shafts

verfasst von : Robert J. Jenny

Erschienen in: Tunnel Engineering Handbook

Verlag: Springer US

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There are generally two modes of access to tunnel construction: through a portal providing direct access at the surface or through a shaft providing vertical access to the level of tunnel operations. Since urban land is valuable and interference with existing services must be minimized, most tunnels built through urban areas require shafts to reach the working area and to provide for removal of tunnel muck.

Metadaten
Titel
Shafts
verfasst von
Robert J. Jenny
Copyright-Jahr
1996
Verlag
Springer US
DOI
https://doi.org/10.1007/978-1-4613-0449-4_9