1. General Infrastructures Services Department LIU-SPS external beam dump - Internal Review Civil Engineering Aspect for Option B (LSS4) 30/7/2014 Martin Manfredi GS-SE-FAS 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 1

2. General Infrastructures Services Department TAG41 TAG42 TT40 TJ8 TT41 SPS ring TI8 MagnetMQID.80500 DUMPLINE AREA FORESEEN TAG41 Neutrino access gallery (CNGS) Proton Beam Line SUMMARY: Path foreseen to reach DUMP AREA (TI8): ~300m Different Options developed  Feasibility study Cost estimate and planning for CE work Conclusion 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 2 LIU-SPS external beam dump // Extraction from LSS4

3. General Infrastructures Services Department ~ 140 m Tunnel TAG41 slope: 2.29% Section view Plan view ECA4 ~ 3.10 m ~ 2.50 m A A A A Section A-A Actual space available for transport: 1.56m (W); 2.05m (H) 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 3 PATH FORESEEN // Access from Shafts PAM4  TI8 Dump Area

4. General Infrastructures Services Department TAG41 Tunnel TAG42 slope: 7.26% Section view ~ 120 m TT41 TAG41 TI8 Plan view B B B B C C C C Section B-B Section C-C TT41 ~ 3.40 m ~ 2.70 m ~ 2.15 m TAG42 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 4 PATH FORESEEN // Access from Shafts PAM4  TI8 Dump Area

5. General Infrastructures Services Department Tunnel TAG42 Magnet: MQID.80500 Tunnel TT41 Tunnel TI8 slope: 0.4% TJ8 Plan view ~ 30 m ~ 12 m D D Section D-D ~ 6.00 m ~ 2.15 m TT41 New Tunnel foreseen which allows a straight connection between TAG42 --> TI8 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 5 PATH FORESEEN // Access from Shafts PAM4  TI8 Dump Area

6. General Infrastructures Services Department Existing TI8 tunnel Existing TT41 tunnel TI8 beam line Dump line Plan view Extraction Point before MQID.80500 7MBSG + 7 MBNH, 12.16m of final drift up to absorber, 93.65m total length TI8 enlargement DUMP Option B1, DUMP LINE characteristics: Magnet: MQID.80500 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 6 EXTERNAL DUMP DESIGNED // Option B1 (single enlargement) Section F-F Crane 5Ton? Ventilation Unit F F Option B1, CE conditions: TI8 enlargement before the first MBNH At least 4.80m of distance kept from the existing TT41 tunnel (4.92m calculated) Single cross section, allow easy construction works and equipments installation/maintenance CONC+IRON+CONC used as shielding around the absorber (50+100+50) Option B1, Enlargement size: 68.5m long – 10.5m wide

7. General Infrastructures Services Department Existing TI8 tunnel Existing TT41 tunnel Plan view TI8 enlargement DUMP Magnet: MQID.80500 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 7 EXTERNAL DUMP DESIGNED // Option B2 (single enlargement) Section F-F Crane 5Ton? Ventilation Unit F F Option B2, Enlargement size: 73.5m long – 10.5m wide Extraction Point before MQID.80500 7MBSG + 7 MBNH, 17.16m of final drift up to absorber, 98.65m total length Option B2, DUMP LINE characteristics: TI8 enlargement before the first MBNH At least 4.80m of distance kept from the existing TT41 tunnel (4.92m calculated) Single cross section, allow easy construction works and equipments installation/maintenance CONC+IRON+CONC used as shielding around the absorber (50+100+50) TI8 beam line Dump line Option B2, CE conditions:

8. General Infrastructures Services Department Existing TI8 tunnel Existing TT41 tunnel Plan view TI8 enlargement DUMP Magnet: MQID.80500 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 8 EXTERNAL DUMP DESIGNED // Option B3 (single enlargement) Section F-F Crane 5Ton? Ventilation Unit F F Option B3, Enlargement size: 91.0m long – 10.5m wide Extraction Point before MQID.80500 7MBSG + 3 MBNH, 62.57m of final drift up to absorber, 144.06m total length Option B3, DUMP LINE characteristics: Option B3, CE conditions: TI8 enlargement before the first MBNH At least 4.80m of distance kept from the existing TT41 tunnel (4.92m calculated) Single cross section, allow easy construction works and equipment installation/maintenance CONC+IRON+CONC used as shielding around the absorber (50+100+50) TI8 beam line Dump line

9. General Infrastructures Services Department Existing TI8 tunnel Existing TT41 tunnel Plan view TI8 enlargement DUMP Magnet: MQID.80600 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 9 EXTERNAL DUMP DESIGNED // Option B4 (single enlargement) Section F-F Crane 5Ton? Ventilation Unit F F Option B4, Enlargement size: 83.6m long – 12.5m wide Extraction Point before MQID.80600 7MBSG + 7 MBNH, 26.26m of final drift up to absorber, 107.76m total length Option B4, DUMP LINE characteristics: Option B4, CE conditions: TI8 enlargement before the first MBNH At least 4.80m of distance kept from the existing TT41 tunnel (8.38m calculated) Single cross section, allow easy construction works and equipments installation/maintenance Only CONC used as shielding around the absorber (300cm) TI8 beam line Dump line

10. General Infrastructures Services Department New Tunnel TAG42  TI8 TI8 Enlargement (+10%) Contingency for unknown/missing items (+12%) Consultancy fees ESTIMATE ACCURACY +/- 50% OPTIONS OVERVIEW AND CE COST ESTIMATE B2 B3 B4 73.5 x 10.591.5 x 10.583.6 x 12.5 (m) 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 10 Enlargement Size (L x W) MQID.80500 MQID.80600 - Extraction Point Final Drift Length / Total Length17.16 / 98.6562.57 / 144.0626.26 / 107.76 (m) MBNH foreseen73 7 Type of shielding (*) C+I+C C 0.50 (MCHF) Cost Estimate for Civil Engineering work (**) : B2 B3 B4 6.80 8.40 9.80 (MCHF) 7.30 8.90 10.30 (MCHF) 0.73 0.89 1.03 (MCHF) 0.88 1.07 1.24 (MCHF) 8.91 10.86 12.57 (MCHF) TOTAL: Options Overview: (n°) - C+I+C CONCRETE: 50 (cm) IRON: 100 (cm) CONCRETE: 50 (cm) 200 (cm) C CONCRETE: 300 (cm) (*) shielding thickness (**) NOT INCLUDED: GS-SE Resources, Demolition existing TI8 tunnel, Instrumentation for ground stability monitoring, Special works, Services (ventilation, electricity, etc)

11. General Infrastructures Services Department OPTIONS OVERVIEW AND PLANNING 30/7/2014 J. Osborne, M. Manfredi, GS-SE-FAS 11 Options Overview: Extraction Point before MQID80500 Extraction Point before MQID80600  DUMP LINE shifted 30m downstream Feasible using shielding blocks with CONC+IRON+CONC //Option B2,B3 // Feasible using shielding blocks with ONLY CONC (two enlargement at least are needed  more cost foreseen, ) NOT Feasible using shielding blocks with ONLY CONC (and a single enlargement) Feasible using shielding blocks with ONLY CONC (and a single enlargement) //Option B4// 20 months Planning and Resources: ( * ) The resources given in this table are over and above the existing resources currently in GS-SE Group