GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE1 Transfos (2x 2 MVA) Servers (containers) New LHCb Control Room (CR) + LHC cryogenics CR New Assembly Hall (485 m2) New Storage Hall (112 m2) POINT 8 – New LHCb Buildings in replacement of building 156 (Meyrin) A B C Technical Gallery D FIG.1 LS1 Area LHCb giant poster Big Bang passeport

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE2 In brief the project of the LHCb new buildings for the upgrade phase at Pit 8 consists of three parts. Part 1 : New building for housing the LHCb Control Room (LCR) + meeting room & offices + new Machine Cryogenics Control Room - Project approved – under way. Part 2 : New buildings for assembly and storage (for replacing the building 156 which was allocated to the LHCb Experiment until 2013 – now foreseen & dedicated to the CLIC & HL-LHC activities) – Project in discussion with CLIC & Hl-LHC. Part 3 : Servers in containers (in front of the SHM8) – LHCb project in preparation. The part 1 of the project has been already approved (2012) and studies are under way with GS department & EN/EL & CV (current status – detailed drawings for call for tenders foreseen in Summer 2013). In the following presentation we describe only the part 2 of the global project, which consists of the proposal for the construction of two new buildings (B & C) dedicated to assembly the detectors & storage, in order to replace the 156 building lost by the LHCb Experiment - details please refer to Fig.2 & Fig.3. The main characteristics of the two future buildings (B & C) are summarized and compared to the existing buildings 156 (MEYRIN site) and SX8 (building from DELPHI at Pit8) in Table 1.

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE3 Building 156 – MEYRIN Site FIG.2 Assembly building up to now dedicated to LHCb, BUT re-allocated to HL-LHC & CLIC activities in near future (?) May 2013

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE4 Building 156 – Assembly Hall FIG.3 May 2013 Assembly room dedicated to RICH2 (roughly 20 x 12 x10 m3)

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE5 Point 8 – LHCb Storage Outdoor FIG.4 May 2013 May 2012

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE6 Point 8 – Available Area (1) FIG.5 Area dedicated to LHCb new storage building B (extension ) B A May 2013

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE7 Point 8 – Available Area (2) FIG.6 Area dedicated to LHCb new assembly building C (3852) C May 2013

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE8 Project - 3 D View A B C D A B C New LHCb Control Room ( ~ 220 m2) + Meeting Room (~ 140 m2) + Offices (~ 80 m2) + new LHC Cryogenic Control Room (~ 55 m2) + Technical rooms (~ 120 m2) - 3 floors (lift 5-6 people) New LHCb Storage Hall – 112 m2 – crane 7.5 t (for replacing 156 building) New LHCb Assembly Hall & Storage - roughly 485 m2 – crane 30 t (for replacing hall 156 at MEYRIN Site) D Location of the future LHCb servers in containers. FIG.7

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE9 BUILDINGS LENGTH (m) WIDTH (m) HEIGHT (m) SURFACE (m2) CRANES (t) UNDER HOOK (m) SX x B C TABLE 1 : Main characteristics of new buildings B&C compared to existing buildings 156 & SX8 Characteristics

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE10 In first approach, the LHCb Experiment leaving the 156 building to the LH-LHC & CLIC activities, is losing roughly 880 m2 for its detector assembly activities and storage. In order to replace this lack of space for LHCb, our proposal is the construction of two new buildings B & C (*). The B building (112 m2) will be dedicated to the storage (or workshop) and the C building (roughly 485 m2) will be oriented to the assembly of the large detector components such as SUPER-RICH for instance. The total surface required is of the order of 600 m2, compared to 880 m2 lost. The total cost is currently estimated to about 2.2 – 2.3 MCHF including general services (ventilation & heating systems, electrical distribution) and cranes. The tentative of the cost breakdown is shown in Table 2. (numbers to be confirmed by GS, EN/EL & CV). The schedule should be as follows : - Construction Permit Request + detailed drawings in Call for tenders in Spring 2014 – Contract Adjudication in June Start construction in January Reception buildings (B & C) end of (*) unfortunately two buildings due to the space constraints at Pit 8 Summary

GTPE 6 June 2013E.PEREZ-DUENAS & D.LACARRERE11 BUILDINGS CIVIL ENGINEERING (kCHF) ELECTRICAL DISTRIBUTION (kCHF) VENTILATION & HEATING (kCHF) CRANES (kCHF) B Storage C Assembly TABLE 2 : Cost estimates GRAND TOTAL = ̴ 2.2 – 2.3 MCHF Cost Estimates