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IMPACT ON TUNNEL INTEGRATION, TRANSPORT STUDIES

IMPACT ON TUNNEL INTEGRATION, TRANSPORT STUDIES. CLIC Two-Beam Module Review 15-16 September 2009 Keith Kershaw, CERN, EN-HE. contents. Aims of study Inputs and requirements Proposed solution Work to reduce tunnel section Implications for module design Open questions

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IMPACT ON TUNNEL INTEGRATION, TRANSPORT STUDIES

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  1. IMPACT ON TUNNEL INTEGRATION, TRANSPORT STUDIES CLIC Two-Beam Module Review 15-16 September 2009 Keith Kershaw, CERN, EN-HE

  2. contents • Aims of study • Inputs and requirements • Proposed solution • Work to reduce tunnel section • Implications for module design • Open questions • Module mock-ups • Conclusions CLIC Two-Beam Module Review Keith Kershaw

  3. Reminder - aims of transport studies • Propose conceptual solution for lowering, underground transport and installation of CLIC modules. • This conceptual solution will provide input into the tunnel integration studies and module integration work CLIC Two-Beam Module Review Keith Kershaw

  4. TUNNEL CROSS SECTION 2007 CLIC Two-Beam Module Review Keith Kershaw

  5. Explanation of requirements • Lower modules to underground area • Transport along tunnel to installation site • Transfer onto supports • Minimise work underground • Be quick (OVER 20,000 modules) • Allow exchange of individual modules CLIC Two-Beam Module Review Keith Kershaw

  6. Module conditioning for transport • Dimensions (seelaterslides) • Weight - 1500kg • Unit of transport - one module at a time • Support points – undergirders • Lift points - fromabove CLIC Two-Beam Module Review Keith Kershaw

  7. MODULE DIMENSIONS FOR TRANSPORT (2008) • Transport envelope in cyan – 1125 x 1150 x 2100 • Lifting points on top of the transport envelope. • Intergirder support acceptable assumption for the moment. CLIC Two-Beam Module Review Keith Kershaw

  8. TRANSFER TRAJECTORY RESTRICTIONS • Laterally - depends on what supports etc will already be installed on the floor – see later slides • Longitudinally – depends on clearance space between adjacent modules during transfer/installation • 30mm allowed for interconnections • space available during installation to be defined CLIC Two-Beam Module Review Keith Kershaw

  9. Module installation trajectory (2008) 500 CLIC Two-Beam Module Review Keith Kershaw

  10. VIBRATIONS / ACCELERATIONS • 1g acceleration used as basis (i.e. normal handling techniques) • Need to avoid overloading supports during installation. CLIC Two-Beam Module Review Keith Kershaw

  11. PROPOSED TRANSPORT / INSTALLATION SYSTEM CLIC Two-Beam Module Review Keith Kershaw

  12. Main beam Drive beam 2 CV pipes 250mm Turnaround loop Monorail 3 cable trays 520mm 2 CV pipes 600mm Safe passage Transport train Drive beam Main beam RIGHT VIEW TYPICAL CROSS SECTION CLIC TUNNEL

  13. Main beam Drive beam 2 CV pipes 250mm Turnaround loop Monorail 3 cable trays 520mm 2 CV pipes 600mm Safe passage Transport train Drive beam Main beam RIGHT VIEW TYPICAL CROSS SECTION CLIC TUNNEL

  14. Main beam Drive beam 2 CV pipes 250mm Turnaround loop Monorail 3 cable trays 520mm 2 CV pipes 600mm Safe passage Transport train Drive beam Main beam RIGHT VIEW TYPICAL CROSS SECTION CLIC TUNNEL

  15. Main beam Drive beam 2 CV pipes 250mm Turnaround loop Monorail 3 cable trays 520mm 2 CV pipes 600mm Safe passage Transport train Drive beam Main beam RIGHT VIEW TYPICAL CROSS SECTION CLIC TUNNEL

  16. Main beam Drive beam 2 CV pipes 250mm Turnaround loop Monorail 3 cable trays 520mm 2 CV pipes 600mm Safe passage Transport train Drive beam Main beam RIGHT VIEW TYPICAL CROSS SECTION CLIC TUNNEL

  17. Jonction chamber with shielding Shaft Loading area Maintenance area 10t Crane Services area Bottom of shaft integration CLIC Two-Beam Module Review Keith Kershaw

  18. Work to reduce tunnel section Need to consider space needed • for transport • for installation transfer CLIC Two-Beam Module Review Keith Kershaw

  19. SPACE REQUIREMENTS – TRANSPORT AND INSTALLATION CLIC Two-Beam Module Review Keith Kershaw

  20. Lower vehicle in case transfer trajectory is lowered CLIC Two-Beam Module Review Keith Kershaw

  21. LATERAL TRANSFER CLIC Two-Beam Module Review Keith Kershaw

  22. 4.5m SECTION JULY 2009 WITHOUT TURNAROUNDS CLIC Two-Beam Module Review Keith Kershaw

  23. 4.5m SECTION JULY 2009 WITH TURNAROUNDS CLIC Two-Beam Module Review Keith Kershaw

  24. IMPLICATIONS FOR MODULE design • Clear interconnection plane (interconnection specification) • Inter-girder restraints for transport • Lifting points and lifting beam • Installation trajectory to be considered during design • Interfaces between tunnel floor, supports and module to be compatible with module installation as a unit. CLIC Two-Beam Module Review Keith Kershaw

  25. Interconnection specification to include: • A clear interconnection plane, with nothing to prevent vertical or lateral movements during installation • Space available between adjacent modules during installation transfer from vehicle onto supports. • Requirements for any tooling to hold bellows in position during installation. • Protection during transport and installation – eg vacuum protection CLIC Two-Beam Module Review Keith Kershaw

  26. Open questions • What is interface between supports and module? • What is installation trajectory ? (depends on support interface and height of what is installed before module arrives). CLIC Two-Beam Module Review Keith Kershaw

  27. What will supports look like? CTF2 Alignment system CLIC Two-Beam Module Review Keith Kershaw

  28. Module mock -ups Install and remove central module with outer modules in position. For example by using overhead crane CLIC Two-Beam Module Review Keith Kershaw

  29. Conclusions • Installation principle (lifting from above) compatible with module layout and pre-installation of alignment equipment. • Provides input to tunnel cross section studies • Allows input into interconnection specification - clear interconnection plane and clearance needed to allow installation and removal of one module between two others • Raises questions about lifting points and transport restraints • Raises questions about whole installation sequence covering supports, alignment equipment and interfaces between girders and their supports • Module mock ups should be used to test installation issues (this will increase focus on installation problems during design). • Installation of other items in tunnel still to be considered. CLIC Two-Beam Module Review Keith Kershaw

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