LHCb Radiation Shielding Wall – Status Wall Description Front Part 1 Aprox. 6 m Front Part 2 Aprox. 6.6 m Labyrinth Upper Part Aprox. 6 m Mobil Plug Cast Concrete Crane 8 tons Cast Concrete Pillar Beams

LHCb Radiation Shielding Wall – Status Upper Part Pillar Cast Concrete Front Part Aprox. 6 m Aprox. 6.6 m Front Part 1 Front Part 2 Labyrinth Door Protected area Experiment 2.4 m 3.2 m Picture for information, don’t show the final design Wall Description Services Feed-through

LHCb Radiation Shielding Wall – Status Upper Part – Metallic Structure Counting House Metallic Structure Crane Maintenance Gangway Access Protected Area Experiment Wall Upper Part position (2400 mm) Once the main heavy block (3 to 7,5 tons weight, lifted up by the crane) have been installed, the metallic structure will serve as distribution platform for the light concrete blocks.

LHCb Radiation Shielding Wall – Status Upper Part – Metallic Structure Metallic Structure Level 2 Level Pillars will support the barriers 1 st layer of blocks Additional Barriers Counting House Roof 2400

LHCb Radiation Shielding Wall – Status Upper Part – Metallic Structure Preliminary works before start the installation: - Install crane hard limits - Install the 1 st layer of blocks - Remove the electrical power line for cranes - Remove lights and cables trays in this area - Protect the 18 kV cable - Install scaffolding - To clear some place in the counting house roof

LHCb Radiation Shielding Wall – Status Upper Part - Blocks Metallic Structure supplier RENCO (IT) DAI: Delivery material 19 – 20 October 2006 Installation form More information

LHCb Radiation Shielding Wall – Status Upper Part - Blocks To fill with small Blocks Type 3 & 4 To fill with small Blocks Type 3 & 4 To fill with small Blocks Type 3 & 4 Block Type 1 Block Type 2 Block Type 1 Block Type 2 CERN Standard blocks Block Type 1 = 8 units, 2285 kg/unit Block Type 2 = 4 units, 2210 kg/unit Block Type 3 = 2850 units, 20 kg/unit Block Type 4 = 1150 units, 24 kg/unit Picture don’t show the metallic structure already in place at this step of the installation.

LHCb Radiation Shielding Wall – Status Upper Part - Blocks

LHCb Radiation Shielding Wall – Status Upper Part – Blocks – Installation Procedure Lift up the blocks by the 8 tons crane To slip the blocks Area to fill with small blocks, access from the crane gangway Area to fill with small blocks, access from new metallic structure Picture don’t show the metallic structure already in place at this step of the installation.

LHCb Radiation Shielding Wall – Status Upper Part – Seismic Stability Michael POEHLER (TS/CE): “Pictures show a technical proposition to improve the stability of the shielding wall upper part, however a stability study must be performed in order to find the best solution.” Make a rigid plane where the 5th block layer will be fastened. This rigid plane could by made using the 2nd level of the metallic structure

LHCb Radiation Shielding Wall – Status Cast Concrete Protected area Experiment Cast Concrete 7.5 m^3 Cast Concrete 7.5 m^3

LHCb Radiation Shielding Wall – Status To fill with concrete Experiment Area Protected Area Crane Rail Air Ducts & Services Chicane Picture for information, don’t show the current status of the area Cast Concrete - Environment

LHCb Radiation Shielding Wall – Status Cast Concrete – Technical drawings

LHCb Radiation Shielding Wall – Status CompanyPrice LOSINGER (CH) Sfr + scaffoldings RAMPINI (CH)Declined MONTESSUIT (FR)Declined COLAS GENEVE (CH)Waiting IMPLENIA CONSTRCCION (CH)Waiting MIAZZA (CH)Waiting FORBETON (CH)Waiting COLAS (FR)Waiting Cast Concrete – Price Enquiry

LHCb Radiation Shielding Wall – Status Services Mobil Plug door Labyrinth door 6000 Front Part 1 Front Part 2 Front Part – Description

LHCb Radiation Shielding Wall – Status 6000 Two rigid planes between the blocks layers Michael POEHLER (TS/CE): “Picture show a technical proposition to improve the stability of the shielding wall front part, however a stability study must be performed in order to find the best solution.” Front Part – Seismic Stability

LHCb Radiation Shielding Wall – Status Cables trays Pipes Beams Air Ducts Cables trays Pipes Air Ducts Pillar Gas Pipes Services Environment