EA Renovation Project – Project Team 29 – 28 June 2019 NEWS East Hall under construction - 1962 EA Renovation Project – Project Team 29 – 28 June 2019 NEWS S. Evrard – EN-EA, on behalf of the Project Team https://edms.cern.ch/document/2113548/0.1

Agenda Budget Technical and safety review on beam line shielding TDR Monday, October 28, 2019Monday, October 28, 2019 PT29

Material budget update (MTP 2019) Before MTP 2019: 21.767 kCHF ( + 887 kCHF M2P,  22.654 kCHF CtC) MTP: additional request 3,320 kCHF Granted : 2,669 kCHF OFEN incentives: requested 1,600 kCHF Granted: 796 kCHF (as not yet available, not included in M budget right now) After MTP 2019: 24.436 kCHF Reprofiling just completed and sent to all GL’s involved.

Budget situation on 25.06.19 Too much commitments for 2019 Could block future orders Adjustment in progress Monday, October 28, 2019Monday, October 28, 2019 PT29

Tech&Safety review #1 Explain the problem in details Current shielding design exceeds admissible ground loads Discuss et clarify issues Propose possible solutions Or at least identify a way to progress towards some solutions Monday, October 28, 2019Monday, October 28, 2019 PT29

Introduction : Maximum permissible load in b.157 (2)5.5 t/m2 (2)From Raul Fernandez (SMB-SE) calculations (1)30 t/m2 (1) From the construction drawings (1)1 t/m2 47m 113m E. Harrouch, 27-06-2019

Introduction : Shielding before and after LS2 PS B.157 Before LS2 PS B.157 After LS2 E. Harrouch, 27-06-2019

Integration Constraints Courtesy E. Iliopoulou , R. Froeschl 27/06/2019 RP EA Shielding Design – EDMS 2175579

Shielding Design Drivers Beam loss in PS Secondary beams Standard primary beam to T9 and T10 targets Accidental beam loss to CHARM Courtesy E. Iliopoulou , R. Froeschl 27/06/2019 RP EA Shielding Design – EDMS 2175579

Shielding Design Status Finished CLOUD beam Pipe feed-through Minor verifications Open points Roof shielding Ventilation Station platform Courtesy E. Iliopoulou , R. Froeschl 27/06/2019 RP EA Shielding Design – EDMS 2175579

Tech&Safety review #1: outcome Identify critical areas Optimize load distribution Relocate loading areas (avoid the technical gallery) Optimize mixed area shielding (include magnets in simulations) Consider local reinforcement (technical gallery) Consider load & destructive tests (assess concrete composition) Appeal to Geotechnics company Define acceptance procedure Assess seismic response Propose CERN-wide guidelines (create database) Monday, October 28, 2019Monday, October 28, 2019 PT29

TDR Full review by our Editorial Board Still some fine tuning Approval by groups during July Monday, October 28, 2019Monday, October 28, 2019 PT29

Meeting schedule in 2019 01/02/2019: Project Team #26 22/3/2019 : Project Team #27 10/5/2019 : Project Team #28 28/6/2019 : Project Team #29 26/7/2019 : TBC 23/8/2019 : TBC 27/9/2019 25/10/2019 22/11/2019 Monday, October 28, 2019 PT29

Thanks for your attention ! Monday, October 28, 2019Monday, October 28, 2019 PT29