ML Tunnel Design Change High Energy Accelerator Research Organization KEK- LC Project Office Masanobu Miyahara 5th Nov. 2015.

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Presentation transcript:

ML Tunnel Design Change High Energy Accelerator Research Organization KEK- LC Project Office Masanobu Miyahara 5th Nov. 2015

CFS Work after TDR ML-Tunnel Standard Section in TDR Beam Line RF Gallery ML-T Cross Section ML-T 3D Image Beam Line RF Gallery Shielding Wall Drainage Trench Cross Section Tunnel Section : W11.0 m× 5.5m, Excavation Area : 62.7 m 2 Shielding Wall : W3.5 m × 5.5m, Wall Area : 15.5 m 2

ML-Tunnel Standard section in New Baseline 66kV & 6.6kV High Voltage Line Cooling Water(S,R) & CHW(S,R) Underground Water ML-Tunnel Cross Section in New Baseline ML-Tunnel Layout PartDimensions BLW: 3.8m Shielding WallThickness: 1.5m RFW: 4.2m Total Beam Tunnel Length : 25,000m

Baseline SW3.5m Option-1 SW1.5m, BL3.8m, RF3.7m Option-2 SW1.5m, BL3.8m, RF4.2m W11m x H5.5m Designed Ex Area 62.7 m2 W9m x H5.5m Designed Ex Area 53.6 m2 W9.5m x H5.5m Designed Ex Area 55.8 m2 Schedule (Monthly Progress) 92.8 m/month101.2 m/month99.0 m/month Construction Cost Unit kJPY/mUnit kJPY/mUnit kJPY/m kJPY/m Total 60,250 MJPYTotal 47,880 MJPYTotal 49,130 MJPY - 12,370 MJPY- 11,120 MJPY Cost Comparison (TDR:100%) 79.5%81.5% Comparison Study of Construction Cost 2014 CFS 4 TDR Baseline 11.0 × m 2 Reviced Option -2 9m × 5.5m 53.6 m 2 Reviced Option m × 5.5m 55.8 m 2 Confidential Document

Option-1 SW1.5m W9.0m x H5.5m Ex Area 53.6 m2 Total Kamaboko Tunnel length : 25,000m Baseline SW3.5m W11m x H5.5m Designed Ex Area 62.7 m2 - Beam line : Width 3.8m - Klystron gallery: Width 3.7m - Tunnel Ceiling: Height 5.5m - Beam line : Width 3.8m - Klystron gallery: Width 3.7m - Tunnel Ceiling: Height 5.5m Scheme Change Concept TDR Baseline:  Possible to enter the RF area during the beam operation New Baseline:  Person's entering restriction during the beam operation  Considering the dark current Variation of the Change Option Tunnel cross section CFS Work after TDR - Beam line : Width 3.8m - Klystron gallery: Width 4.2m - Tunnel Ceiling: Height 5.5m - Beam line : Width 3.8m - Klystron gallery: Width 4.2m - Tunnel Ceiling: Height 5.5m Option-2 SW1.5m W9.5m x H5.5m Ex Area 55.8 m2 - Beam line : Width 3.8m - Klystron gallery: Width 3.7m - Tunnel Ceiling: Height 5.5m - Beam line : Width 3.8m - Klystron gallery: Width 3.7m - Tunnel Ceiling: Height 5.5m

Back Up

Connecting Passage between both tunnels Under Discussion

New Baseline Additional Tunnel 13, , /4/138 CFS Work after TDR 3km Extension of ML Tunnel QuantityUnit PriceCost for this scheme change 3,000 kJPY/m5,895,000 kJPY  Civil Cost neccesaried for CR-004 : 5,895,000 kJPY.  This cost is equivalent to approximately 53% of amounts of money managed to come up with by an ML tunnel section change.

TDR Baseline 11.0m × 5.5m 62.7 m 2

Reviced Option m × 5.5m 53.6 m 2

Reviced Option m × 5.5m 55.8 m 2