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Design and construction of the tensioned ties for UX15 cavern vault

Due to the programme constraints for the UX15 cavern set by CERN, it has been necessary to complete the concrete lining of the vault prior to the excavation of the bench. The vault lining is therefore being temporarily suspended from a number of pre-tensioned high capacity multi-strand tensioned tie...

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Autor principal: Parkin, R J H
Lenguaje:eng
Publicado: 2002
Materias:
XX
Acceso en línea:http://cds.cern.ch/record/687606
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author Parkin, R J H
author_facet Parkin, R J H
author_sort Parkin, R J H
collection CERN
description Due to the programme constraints for the UX15 cavern set by CERN, it has been necessary to complete the concrete lining of the vault prior to the excavation of the bench. The vault lining is therefore being temporarily suspended from a number of pre-tensioned high capacity multi-strand tensioned ties. During excavation of the bench, additional loads will be imposed onto the vault lining due to ground displacements. In order to minimise the number of ties, the previously completed linings of the PX14 and PX16 access shafts will be used to support some of the load. Three-dimensional modelling has been undertaken to design the structures and determine the expected behaviour of this complex support system. Geotechnical instrumentation has been installed in the concrete linings and the ground to monitor loads and displacements during construction. After the cavern walls have been completed, the ties will be released.
id cern-687606
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2002
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spelling cern-6876062019-09-30T06:29:59Zhttp://cds.cern.ch/record/687606engParkin, R J HDesign and construction of the tensioned ties for UX15 cavern vaultXXDue to the programme constraints for the UX15 cavern set by CERN, it has been necessary to complete the concrete lining of the vault prior to the excavation of the bench. The vault lining is therefore being temporarily suspended from a number of pre-tensioned high capacity multi-strand tensioned ties. During excavation of the bench, additional loads will be imposed onto the vault lining due to ground displacements. In order to minimise the number of ties, the previously completed linings of the PX14 and PX16 access shafts will be used to support some of the load. Three-dimensional modelling has been undertaken to design the structures and determine the expected behaviour of this complex support system. Geotechnical instrumentation has been installed in the concrete linings and the ground to monitor loads and displacements during construction. After the cavern walls have been completed, the ties will be released.ST-Note-2002-018-CEoai:cds.cern.ch:6876062002-11-13
spellingShingle XX
Parkin, R J H
Design and construction of the tensioned ties for UX15 cavern vault
title Design and construction of the tensioned ties for UX15 cavern vault
title_full Design and construction of the tensioned ties for UX15 cavern vault
title_fullStr Design and construction of the tensioned ties for UX15 cavern vault
title_full_unstemmed Design and construction of the tensioned ties for UX15 cavern vault
title_short Design and construction of the tensioned ties for UX15 cavern vault
title_sort design and construction of the tensioned ties for ux15 cavern vault
topic XX
url http://cds.cern.ch/record/687606
work_keys_str_mv AT parkinrjh designandconstructionofthetensionedtiesforux15cavernvault