Strong interference Started in RDR Logistics Safety RDR

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Strong interference Started in. RDR Logistics Safety RDR designwith has beendesign put and aside

Strong interference Started in. RDR Logistics Safety RDR designwith has beendesign put and aside Two between Large shafts Shafts and Detector above. Areas U-Hall looking for direction better solutions Side. Difficult pressurized to position lifts Egress tunnels and stairs connected Safety to problems stairs/lifts during Common ALL to handling all designs operations

Two Large Shafts outside the Footprint 9 m shaft for machine service Two shafts

Two Large Shafts outside the Footprint 9 m shaft for machine service Two shafts with lift/stairs services 80 -t crane access from surface

Potential risk of structural weakness on this side Stairs & Lift + services Stairs

Potential risk of structural weakness on this side Stairs & Lift + services Stairs & Lift +services

Elements could be lowered at an angle and rotated in the Transfer Tunnel

Elements could be lowered at an angle and rotated in the Transfer Tunnel

For two experiments, it is too crowded Civil Engineering turf during phase I

For two experiments, it is too crowded Civil Engineering turf during phase I

Two Halls can be separated, and still Gantry (possibly cover) could be shared

Two Halls can be separated, and still Gantry (possibly cover) could be shared

Hall Parameters - Length around 90 m Space for ancillaries recovered from curved end-wall

Hall Parameters - Length around 90 m Space for ancillaries recovered from curved end-wall Maximum stroke 28 m Space reserved for shielding wall be from 0 to 100% on any one side of experim 8 m working corridor, could

Hall Parameter - Width Transfer Tunnel allows easy extraction of ‘Tracking Device 5. 6

Hall Parameter - Width Transfer Tunnel allows easy extraction of ‘Tracking Device 5. 6 m 9 m Transfer tunnel 31 m

One Large Shaft - General view Secondary 9 m shaft Main service cavern machine

One Large Shaft - General view Secondary 9 m shaft Main service cavern machine & Exp B • . B Main 18 m shaft A Second service cavern Exp A

1: to mainof unloading zone Movements Experiment B 2: to garage position 3: beam/garage

1: to mainof unloading zone Movements Experiment B 2: to garage position 3: beam/garage position 2 1 3

Movements of Experiment A 1: to main unloading zone 2: to garage position and

Movements of Experiment A 1: to main unloading zone 2: to garage position and leave space for experiment B in unloading zone 3: beam/garage position Exp B 1 2 A 3 This side of the cavern has to be longer by at least 10 m