Author: Laurent Tavian (CERN)
-
Status of infrastructure installations for HL-LHC
Following the handover of the civil engineering buildings and structures in the period from May 2020 until January 2023, the installation of the general services and technical infrastructures has started at the HL-LHC worksites of P1 (ATLAS) and P5 (CMS). The two worksites are in the so-called worksite Category 1 and will remain closed and…
-
Status of civil engineering works and technical infrastructures
The civil engineering works is progressing well (the detailed progress status is shown in Figure 1). The underground works, including the metallic structures, have been fully completed at Point 1 in October 2021 and Point 5 in February 2022, with only one to two months of delay with respect to the contractual dates mainly due…
-
Status of civil engineering works
In spite of the perturbation related to the COVID-19 pandemic, the civil engineering works is progressing well. Figure 1 shows the civil engineering status. At Point 1, the final lining of the underground structures is fully completed and the installation of metallic structures, concrete modules, separation walls and safe rooms in the cavern and in…
-
COVID-19 Impact on Schedule and Update on Civil Engineering Works
The COVID-19 restrictions have impacted the schedules of the LS2 and of the HL-LHC activities. Concerning the LS2 schedule, the hardware commissioning of LHC should be completed by March 2021 for all sectors except the S67, where the installation of the first 11-T dipole cryo-assembly is foreseen during the first quarter of 2021, postponing the…
-
Update on Civil Engineering Work for HL-LHC
The two civil-engineering contractors, MARTI for the Point 1 works and IMPLENIA for the Point 5 works, are fully mobilized. The excavations of the shafts at Points 1 and 5 were completed in February 2019 and December 2018, respectively. The shaft excavation were performed during the LHC physics Run2, with very minor impacts on the…
-
Groundbreaking for the Civil Engineering work at P1 and P5 of the LHC
Two contracts for the civil engineering works were adjudicated by the Finance Committee of March 2018 to a consortium MARTI TUNNELBAU, MARTI ÖSTERREICH and MARTI DEUTSCHLAND for the Point 1 works and to a consortium IMPLENIA SCHWEIZ, BARESEL and IMPLENIA CONSTRUCTION for the Point 5 works. At each point, the work consists of the construction…
-
Progress on the Civil Engineering preparation for P1 and P5 of the LHC
The key highlights of the Civil Engineering work include the completion of the preliminary design of the civil engineering works at Point 1 and Point 5 at the end of 2016 by the external Consultants. The Consultants also performed an independent cost estimate for the civil engineering work which falls within the project cost estimates…