1. Sébastien MICHALMarch 2009

2. Sébastien MICHALMarch 2009 EES 1 GROOVE EES 1 laid on table to be milled EES 1 laid on table to be milled –Move horizontally EES frame crossing bar

3. Sébastien MICHALMarch 2009 EES ASSEMBLY EES1 and EES2 fixed on assembly table and lifted EES1 and EES2 fixed on assembly table and lifted EES chamber struts and temporary pin inserted EES chamber struts and temporary pin inserted

4. Sébastien MICHALMarch 2009 EES ASSEMBLY EES frame mounted, alignment bar in REST position EES frame mounted, alignment bar in REST position EES assembly fixed to the table, lifting beam connected to the assembly EES assembly fixed to the table, lifting beam connected to the assembly EES frame REST position Adjustable supports

5. Sébastien MICHALMarch 2009 EES ASSEMBLY Crane fixed to the assembly table. Crane fixed to the assembly table. EES assembly (chambers, alignment bar, frame, lifting beam) are rotated until the vertical position. EES assembly (chambers, alignment bar, frame, lifting beam) are rotated until the vertical position. Assembly table rocking fixation connected to the floor. Assembly table rocking fixation connected to the floor. Crane connected to the lifting beam. Crane connected to the lifting beam. Fixation btw assembly table and EES assembly disconnected. Fixation btw assembly table and EES assembly disconnected. EES assembly lifted and fixed to the EO rack. EES assembly lifted and fixed to the EO rack. EO rack with two EES assemblies transported to point 1 and lowered into the pit. EO rack with two EES assemblies transported to point 1 and lowered into the pit.

6. Sébastien MICHALMarch 2009 EES SUPPORTING STRUCTURE Fixed to barrel struts and voussoirs Fixed to barrel struts and voussoirs Surveyed Surveyed Removable in sector 5 Removable in sector 5 Supports Curved aluminum pipes (rails)

7. Sébastien MICHALMarch 2009 RAIL SUPPORT Adjustable connecting pin Adjustable connecting pin

8. Sébastien MICHALMarch 2009 EES INSTALLATION TOOLING Fixed to sector 5 strut Fixed to sector 5 strut Removed for the sliding of chambers and walkways Removed for the sliding of chambers and walkways Before EES installation, installation of walkways and gangways Before EES installation, installation of walkways and gangways

9. Sébastien MICHALMarch 2009 WALKWAYS AND GANGWAYS Modular and divided in two portions. Modular and divided in two portions. They surround the EES assembly. They surround the EES assembly. Installation step: Installation step: –First portion introduced –EES assembly introduced and positioned –Second portion introduced They will be inserted using EES rails They will be inserted using EES rails

10. Sébastien MICHALMarch 2009 EES ASSEMBLY LOWERING EES assembly lowered with lifting beam EES assembly lowered with lifting beam Installation of the hanging fixations, lifted to sector 5 Installation of the hanging fixations, lifted to sector 5 Hanging fixations

11. Sébastien MICHALMarch 2009 EES INSTALLATION TOOLING Trolleys positioned on the rails Trolleys positioned on the rails 4 trolleys

12. Sébastien MICHALMarch 2009 EES ASSEMBLY INSERTION Pass trough struts and voussoirs Pass trough struts and voussoirs Ladder placed in sector 5 must be removed Ladder placed in sector 5 must be removed

13. Sébastien MICHALMarch 2009 EES ASSEMBLY INSERTION EES assembly fixed to the strut, IPN profiles partially removed, installation of missing rails EES assembly fixed to the strut, IPN profiles partially removed, installation of missing rails

14. Sébastien MICHALMarch 2009 EES ASSEMBLY INSERTION Tireforts and rail hoist slightly tensioned, strut fixation and trolleys detached, hanging fixation removed. Tireforts and rail hoist slightly tensioned, strut fixation and trolleys detached, hanging fixation removed. EES assembly EES assembly pulled with rail hoist and safely guided by tireforts

15. Sébastien MICHALMarch 2009 ALIGNMENT BAR POSITIONING Before arriving at correct location, alignment bar move up by 40 mm Before arriving at correct location, alignment bar move up by 40 mm REST position WORK position Camera mount Metallic safety strip and rest support removed Metallic safety strip and rest support removed Safety strip

16. Sébastien MICHALMarch 2009 EES ASSEMBLY INSERTION Survey clamp (two pieces): correct azimuthal location Survey clamp (two pieces): correct azimuthal location EES assembly locked up in position with the second clamp EES assembly locked up in position with the second clamp Tireforts detached Tireforts detached Gangways installed Gangways installed Chamber aligned Chamber aligned using adjustable support and struts