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| TUPAN092 |
Schedule evolution during the life-time of the LHC project
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cryogenics, collider, hadron, controls |
1592 |
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- K. Foraz
- E. Barbero-Soto, H. Gaillard, C. Hauviller, S. Weisz
CERN, Geneva
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The Large Hadron Collider Project was approved by the CERN Council in December 1994. The CERN management opted from the beginning of the project for a very aggressive installation planning based on a just-in-time sequencing of all activities. This paper aims to draw how different factors (technical development, procurement, logistics and organization) have impacted on the schedule evolution through the lifetime of the project. It describes the cause effect analysis of the major rescheduling that occurred during the installation of the LHC and presents some general conclusions potentially applicable in other similar projects.
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| THICKI02 |
Design of Large-sized Accelerator Tunnel
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synchrotron, alignment, controls, heavy-ion |
2697 |
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- T. Kato
- A. Tamura
Nikken Sekkei Civil Ltd, Tokyo
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There are several key points in designing the underground tunnel where large-sized accelerator is installed. The following two points are very important. (1) Transformation of the tunnel should be minimal. (2) Level of integrity and durability of the tunnel structure should be high. In order to accomplish minimal transformation of the tunnel and stable operation of the accelerator, we recommend not to provide the expansion joints in the tunnel concrete. As the result of structural analysis which we performed on temperature change inside the tunnel without expansion joints, we confirmed that there was few incidence of harmful cracks and transformation.
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Slides
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