1. Kitakami-site-specific CFS Study update
version pub
Kitakami-site-specific CFS Study update
H. Hayano (KEK) for the CFS team (Tohoku-ILC, KEK)
The slides are based on the report in the review, held on 26 September 2017 at KEK.
But the cost values are excluded.

2. CFS design studies, specific to Kitakami-site
The design base is TDR and TDR-updated design.
Targets
Make the CFS-civil design study, specific to Kitakami Candidate Site
Make the CFS-utility design study, specific to Kitakami Candidate Site
By designing the detailed utilities arrangement,
estimate the amount, footprint and connection length of utility devices
and the most updated Cost for CFS,
for the staging case, especially for option-C.

3. Staging Option C
ECM=250GeV
SRF 31.5MV/m m m
3489.0m m
4795.2m
2516m
PM-12
PM-10
PM-8
PM+8
PM+10
PM+12
(PM-0)drain tunnel
583m space
583m space IR
Ecm=250GeV BC BC
e+inj
e-inj
module space margin
for option C, 31.5MV/m 51 90
189
189
module space margin
for option C, 31.5MV/m 24
module space 24
180
189 90 51 51 45
189
189
cryomodules
180
189 45 51 24 24 17 10 42 42 8
RF unit 8 40 42 10 17
e GeV =
10.0
12.8
53.5
53.5
5.0
E gain (GeV)
5.0
51.0
53.5
12.8
10.0
= e GeV
+5.8%margin
Total tunnel length = m
(20.5km)
The reference design for this study is TDR staging option-C

4. Staging Option D

5. Tunnel Access design study
Site-specific CFS design were based on
TDR including some updates by 2016,
TDR-staging study and site-studies with optimized arrangement of utilities.

6. Access Tunnels Option D Site-specific design of Access tunnels
total length=6992m
simple tunnel
PM-12
AT-12：　1393m
PM-10
Total tunnel length
= 33,503.5m (33.5km)
Total Accelerator
tunnel length
= 20,549.5m (20.5km)
electron linac
AT-10：　1503m
PM-8
Interaction Region
AT-8：　691m
AT・DR (access point to DR)：763m
AT・DH (branch to detector hall)：693m
PM+8
damping
ring
AT+8：　283m
positron linac
PM+10
AT+10：　943m
drain tunnel (0.13%gradient)：
4335m
PM+12
AT+12：　723m
simple tunnel

7. Access Tunnels Option C Site-specific design of Access tunnels PM-10
AT-10：　1503m
electron linac
PM-8
Total Accelerator tunnel length
= 20,549.5m (20.5km)
AT-8：　691m
AT・DR (access point to DR)：763m
AT・DH (branch to detector hall)：693m
Interaction Region
damping
ring
drain tunnel (0.13%gradient)：
4335m
PM+8
AT+8：　283m
positron linac
AT+10：　943m
access tunnels 5
　total length　4876m
Detector shaft 1
　　　　φ18m　depth 75m
PM+10
Drain tunnel　 1
　total length　4335m
Utility shaft
　　　　φ10m　depth 75m

8. Surface Access Stations
Option C
Site-specific design of
Surface Access stations.
arrangement can be optimized
and re-arranged site-by-site.
PM-10
electron linac
AS-10
PM-8
surface design
　　IP area　78,500m2 １area
to be further discussed
specially with LCC-MDI.
AS-8
Area of
surface building
(Tohoku Study)
surface design
access stations　
　16,600m2 5 area
to be further discussed.
AS-0a
AS-0
Interaction Region
AS+10: 4778m2
damping
ring
AS-10: m2
PM+8
AS+08: 3706m2
river
AS+8
AS-08: m2
positron linac
AS-0: m2
AS-0a: m2
PM+10
AS+10

9. to be further discussed specially with LCC-MDI.
154kV receive
surface design
IP area　78,500m2 １
to be further discussed specially　with LCC-MDI.
154kV to 66kV Trans
66kV co-generation
Water chiller & pumps
Air intake/exhaust
LNG
for co-generation
research building He
compressor & tanks
IP detector assembly building
ILD&SiD detector preparation building
computing building

10. to be further discussed.
surface design
access stations　
　16,600m2 5 area
to be further discussed.
Access Tunnel
AC power
Air intake/exhaust
He compressor & tanks
Temporary Crane
Water chiller,
tanks & pumps
Rey.Hori/KEK

11. Proposal Underground Access Hall
Site-specific design of
Access Halls with detailed utility
design.
PM-10
Option C
electron linac
PM-8
To be further discussed
with LCC-MDI
Interaction Region
damping
ring
PM+8
river
positron linac
Underground access halls for Immediate
access of Helium, Electrics, Waters, and Airs.
Direct access of utlities from IP surface to
underground hall, through utility shaft.
Utility Hall next to
the detector hall
PM+10
5-floor construction is different from just a cavern.
It will be applied the control of “building standards
law”. Need to clear the inspection of design, proof
of strength. Can we clear them?

12. proposals of underground facility Design
To be further studied and discussed with LCC

13. Proposal of Utility Cavern Movement at Interaction Point
Considering power flow, water flow and air flow between utility shaft and the devices,
TDR updated (two vertical shafts)
Proposed design of Utility cavern
Utility hall
Floor Area
50m x 20m = 1000 m2
volume
50m x 20m x 10m
=10,000m3
Tunnel volume
53m2 x 200m
=10,600 m3
TDR updated in 2015
Utility hall
Floor Area
25m x 25m x 5floors = 3125 m2
hall volume
25m x 25m x 43m
=26,875m3
Bypass Tunnel volume
13m2 x 200m
=2,600 m3
Required Utilities footprint
Device Footprint = 1305 m2
Elevator footprint x 5 floors
= 780 m2
Carry-in space = 296 m2
connection tunnel
between Utility and DR
To be discussed w/ LCC-MDI
Bypass tunnels
between Utility and
ML, DH, BDS, dumps
Utility-IP distance
６６．５ｍ
(vibration issue)
Utility-IP distance
109ｍ
(vibration issue)
Q: How simple is Energy flow?
what is the effect of mechanical vibration to IP?

14. Consideration of one-way power-flow, water-flow, air-flow at IP
Considering power flow, water flow and air flow between the surface through utility shaft
and the accelerator devices, location of Utility Cavern is reconsidered.
Surface Facility
to DR
to DR
Energy Flow
Vertical shaft
Utility Cavern
to DR
to DR
Energy Flow
tunnel
to RTML
to RTML
Underground accelerator
to ML, BDS, BD
to ML, BDS, BD
to DH

15. Energy Flow of TDR updated

16. TDR updated

17. Helium system TDR updated DR-SRF, SC-wiggler spin rotator, QCS
Detector

18. Electric system TDR updated 6.6kV 6.6kV 6.6kV 6.6kV 6.6kV 6.6kV 66kV

19. TDR updated
secondary level
Cooling Water system
Primary level

20. TDR updated
Air system

21. Energy Flow of Tohoku Study

22. Tohoku study

23. Helium system Tohoku study DR-SRF, SC-wiggler spin rotator QCS
Detector

24. Tohoku study
6.6kV
Electric system
6.6kV, 420V, etc.
66kV
66kV
66kV

25. Tohoku study
Cooling water system

26. Tohoku study
Air system

27. Proposal of New Access Hall shape for Main Linac
TDR Access Hall
Proposal of New Access Hall shape for Main Linac
direct access of Electric, Water/Air, Helium
to Main Linac Tunnel.
separate halls for electric, water, helium.
Keep enough connection room for cables,
pipes, ducts, and helium trasfer lines.
Proposed Access Hall
to accommodate detail designed utilities
Hall:2858 m2 tunnel: 904 m2
total area=3762 m2 total volume=38426m3
125m
go to surface
70m
After cryogenics
change request
１３５ｍ
48ｍ
Hall:135m x 20m = 2700 m2 hight=13m,
tunnel:2284 m2 hight=7.5m
total area=4984 m2 , volume=52230m3

28. Water drain,
RI drain,
local maintenance station
Upper Cold-Box
Lower Cold-Box
Electricity Station
Cooling Water System
Cryomodule/Klystron Access
Main Linac Cryomodules
Air handling Unit

29. Main Linac Tunnel Assume pre-casting method
for shield wall, to make constructing time short.
Waveguide
RTML
LPDS
CRYOMODULE
2,200
1,800
Shielding Wall
KRYSTRON
Transport Vehicle
4,000
1,500
4,000
9,500

30. Electric Power Distribution Design Study
Detailed design of electric-power utilities were based on
TDR power list and TDR accelerator design.

31. Electricity Access
Redundant power supply from (1) Local electric company and (2) LNG-CGS
Mizusawa Station
154 kV, 15 km
Aerial wire
Energy Management Service (20 years contract, 5-oku-yen/year added in the electricity fee)
154kV
66kV
275kV
154kV
trans
co-generation
trans
~15km
Mizusawa Station
ILC IP Site

32. Design of Electric Power Line System (1)
Main subsation
66 kV Co-generation
Substation
66 kV Lines
154 kV receive
at AS-0 surface
66 kV receive
at every AH in the tunnel
Energy Management Service
6.6 kV Lines
Local Station
66 kV Lines Distribution in tunnel
6.6 kV receive
at Main Linac Klystron Tunnel
(400V, 200V, 100V distributed)
option C
Main subsation

33. Design of Electric Power Line System (2)
Main subsation
66 kV Co-generation
Substation at Access Hall
66 kV Lines
6.6 kV Lines
154 kV
receive
LNG space
Energy Management Service
Local Station
AH tunnel
AS surface
Number of local substation
54 in total
splittable racks,
distribute in-between
Klystrons
Linac RF tunnel

34. Cooling Water, Air Distribution Design study
Detailed design of water&air utilities were based on
TDR power list and TDR accelerator design.

35. Cooling Water Supply from Oshu-city
Water supply system from the Isawa dam facility to the access stations through pipe in the linac tunnel (250 A)
Banshouji
point
Frontier Park
point
~13km
Isawa Dam
Sakura-yashiki　
point
Option-C
ILC
Construction fee between water branch to ILC site
can be included in the annual water fee.
10,000m3/day
From Oshu-city
Banshouji Point,
Frontier-park point,
Sakura-yashiki point,
are under consideration
for water supply. IP

36. Design study of Cooling Water, air conditioning
(1) To make more smaller water-pipe diameter
Cooling Water Temperature;
35 ℃ supply, DT = 30 ℃
(DT=15 ℃ for racks and WG, 5 ℃ for He compressor),
T control = +/- 1℃ ordinary device
(2) To make more smaller air-duct diameter
Air ventilation;
1/3 of circulation air is exhausted out with HEPA filter,
1/3 fresh air is taken in.
put air into RF tunnel, exhaust air from accelerator tunnel,
through holes of shield wall.
(3) To make tunnel air-temperature control more economical
Air conditioning temperature setting;
for emphasis on economical operation
Temperature of the under-ground (13.4℃) + α　=18 〜 22℃ (under study)
Distributed Fan-coil unit in RF power-supply tunnel.

37. Recent Site specific Cost study

38. Public works cost & construction cost
CFS & Utility Cost study was done by company estimation
This cost study for CFS-civil refer 2014 base of MLIT
construction reference.
2014
TDR
5.4% up
2014
TDR
0 – 20 % up
国交省　建設工事費デフレーター
日本銀行企業物価指数　建設資材価格　推移
MLIT construction cost deflater
Japan Bank construction materials cost change
This cost study for utility refer 2016 base by company.
Cost base for estimation of CFS-civil is 2014, after 2011 Big earthquake.
Inflation of construction materials vary 0-20%. It is difficult to make average inflation.
Electric and Mechanical Utility cost is based on 2016.
Comment: we recognize note , but it is too early to take this number as a solid update,
because it is also unclear how it change after few or several years, to scope the project budget.

39. Site-specific Option C
Changes
TDR Option C
Site-specific Option C
cost base
before 2011-earthquake
2014 for civil, 2016 for others
CFS-Civil
tunnel
9.5m width & 1.5m shield wall for ML,
same to TDR for BDS, DR
on-site construction of shield wall
pre-cast shield wall & fabrication on site
access tunnel
1km for 5 access tunnel assumed
site-dependent 5 access tunnel, total length=4876m, same cross-section shape to TDR
drain tunnel
no cost cosideration
1 drain tunnel with 0.13% & 4335m to the river.
natural drain for emergency (for long time AC down)
underground access hall
180m x 20m x 14m cavern for 4 access halls
new design: separate 4 caverns for 5 access halls
detector hall
TDR updated design
108m x 25m x 42m
φ18 x 70m: 1 vertical shaft
Detector hall combined with-Utility-hall
133 x 25 x 42m
φ18 x 75m: 1 vertical shaft
Utility hall
80m x 20m x 10m: 1 cavern
φ10 x 98m: 1 vertical shaft
included to detector hall
2 new 3m-width bypass tunnel are added
φ10 x 75m: 1 vertical shaft
surface access station
5000m2 x 4 stations, with land-dvlp, w-bldg
18000m2 x 5 stations, with land-dvlp, w/o-bldg
surface IP
20000m2 x 1, land-dvlp, w-bldg
80000m2 x 1, with land-dvlp, w/o-bldg
new surface building design, costed by MEXT rule
manage engineering
+5.5%
including in the estimation
CFS-others
Electric
275kV recv, 10MW emergency generator are included. Wire is excluded.
154kV recv & 10MW co-gneration, excluded (later, pay in operation)
Mechanical (water, air)
cooling water for accelerator: ⊿T=10C, whole-vol air excg, tunnel temp=29C
water-line to ILC, excluded(later, pay in operation)
cooling water for accelerator: ⊿T=30C,
1/3-vol air excg, tunnel temp= 18-22C
handling, safty, survey
as TDR
TEL & Crane are excluded (lease) ,
accelerator handling & survey are excluded
Different points in RED

40. Subjects for discussion
(1) Necessity of connection of Utility cavern with Detector hall is required
for more discussion.
Utilities for detectors should be considered and included.
(2) The connection of Utility vertical shaft with constructed 5 floors in the cavern
requires control of “the building standards law”.
Just a cavern with no floors is no application of “the building standards law”,
will make inspection simpler.
(3) Necessity of natural drain tunnel is required for more discussion.
(4) Surface building cost is required for more discussion.
Comment: IR area, Detector Hall, and surface area/hall needs to be discussed and assessed with LCC-MDI (including experimental groups) before fixing the design-update !

41. Summary of Kitakami-site specific CFS Design study and Cost
(1) Design studies for ILC CFS, specific to Kitakami-site, have been done
for access tunnel, surface area, AC power line, Water line, Air-conditioning, and so on.
(2) Several new arrangement proposals are presented, we will continue to discuss them.
(3) Cost estimation with 2014-base and this utility study have been made,
and made comparison with TDR-option-C cost estimation.
When we compare them with TDR scheme, this cost study with modification of TDR scheme
has resulted 7.8% increase from TDR.
To make it consistent with the original TDR scheme, followings cost adjustment are
considered;
Drain tunnel is excluded, same as TDR,
　 　post-paying-HV station & co-generation are included,
put-aside-Accelerator handling & survey are included,
(4) Further detailed discussion and further cost-down effort are necessary and on a way.

42. General Comment/Remark
The new site-specific CFS study and cost-estimates with Tohoku-KEK cooperation has been basically agreed with the estimates by ILC-GDE which is including some updated agreeable designs, if it could be based on the same material (specially for Civil-Engineering) cost basis.
The new cost estimate is finding about 7.8 % cost increase, if the material cost change effect included.
The new study is finding the way to keep the TDR cost by introducing new solutions proposed.
Further optimization shall be made, reflecting the general material cost status to be possibly, dynamically moved even in coming years.

43. Contributers
Tohoku-ILC (site-specific cost estimation)
M. Yoshioka, T. Sanuki, T. Onuki, S. Narita, T. Okamura, H. Hayano, H. Yamamoto,
Y. Murakami, H. Aoki, I. Kumagai, Y. Kamezawa, J. Sasaki, S. Yamashita, A. Suzuki,
< Committee of underground facility >
Y. Onishi, T. Kyoya, K. Takeuchi, K. Fukuda, H. Ohyama, M. Nago, H. Hamajima, S. Hiramatsu,
M. Shimo, K. Tamamura, K. Akiyoshi, T. Matsuda, T. Nishi, H. Tanimura, H. Hattori, K. Kamemura, T. Takagishi
KEK (TDR & TDR-updated comparison)
H. Hayano, M. Miyahara, N. Terunuma, Y. Sugimoto, S. Araki, S. Michizono, A. Yamamoto
Note: The discussion with LCC global-CFS,Cryogenics and MDI groups shall be well closely
organize to establish the optimum technical solutions with keeping the cost to be stable .

44. Tohoku-ILC (site-specific cost estimation)
Acknowledgement to
Obayashi corp., Shimizu corp., Kajima corp., Taisei corp., Oyo corp., Fukada G-inst., Tohoku Electric,
Toshiba, Yurtec, Takasago Thermal Eng, Atox, Maekawa, Tobishima, ARUP/CERN,
AAA, Iwate Pref., Oshu City, Ichinoseki City, Ichinoseki Fire Station, AAA-civil, LCC/ILC, KEK,
Tohoku-ILC-preparation-office
LCC/ILC KEK (TDR & TDR-updated comparison)
J-power-Electric Power Development co., Nikken Sekkei LTD, Taiyo-Nippon-Sanso corp. ARUP/CERN,

45. End of Slide

46. ( Backup Slides )

47. surface facility Design
( Backup Slides )

48. Collision Point Surface
AS-0 surface
Collision Point Surface
Total Area ha
each zone is splittable,
Area shape can be modified

49. Damping Ring Access Surface
AS-0a surface
Damping Ring Access Surface
Total Area ha
each zone is splittable,
Area shape can be modified

50. Main Linac Access Surface
AS-12 surface
Main Linac Access Surface
Total Area 1.66 ha
each zone is splittable,
Area shape can be modified

51. Cryogenics Arrangement Design
( Backup Slides )

52. Design of Helium Cryogenics System Layout
Surface Facility
Cold Box in Access Hall
Accelerator Tunnel side
Access Tunnel side

53. underground facility Design
( Backup Slides )

54. Proposal of Functions of Utility Cavern extension at Detector Hall
25m Extension of Detector Hall
5th Floor
3rd Floor
4th Floor
1st Floor
2nd Floor
Concerns
accelerator/detector effect from mechanical vibration, AC power lines
effect on utility device from detector magnetic field leakage

55. Proposal of pipes(He, Water and air), power cables arrangement
in the access tunnel
This figure shows only the required space in access tunnel
for cable and rack
This is not the actual installation plan
Access tunnel:
Required space for
Piping
Cable rack

56. Electric power facility Design
( Backup Slides )

57. Electric Power from Tohoku Electric Co, Mizusawa Station
ILC Trans Yard
(reserved!)
Reserved Trans Yards
Two 154kV Trans Yards

58. Electric Power Load Table

59. Water, Air facility Design
( Backup Slides )

60. Design of Cooling Water System
Chiller and pumps
Main Linac Cooling Water Schematics
Access Station
Access Hall
Main Linac
He compressor cooling
Design conditions;
35 degree supply, DT = 30 degree
(15 degree for racks and WG, 5 degree for He compressor),
T control = +/- 1degree ordinary device,
Pressure-forward,backward = determined from flow rate
and pipe diameter,
required flow-rate = from sum-up of RF unit power,
assumed values for BDS and DR
Water reservoir & supply

61. Design of He Compressor Cooling Water System
Circulation
pump
32℃
8 compressor for
one cryo plant
DT =5C
37℃
Ground surface
Access station
Outdoor yard
Closed water
cooling type
cooling tower
Machine room
Compressor room
Circulation pump
32℃
37℃

62. Design of Water Drainage System
Access Station
(surface)
Access Hall (tunnel)
Design conditions;
drainage spring water from tunnel surface
to the surface,
use spring water as cooling water, or just dump

63. Design of Main Dump Water Cooling System
Pump and Chiller Unit in Surface
Pump Unit in Tunnel

64. Design of RI Water Drainage System
undergorund
surface

65. Design of Ventilation System
RF tunnel
accelerator tunnel
Design conditions;
1/3 of circulation air is exhausted out
with HEPA filter,
1/3 fresh air is taken in.
put air into RF tunnel, exhaust air from accelerator
tunnel, through holes of shield wall.

66. Temperature Settings Matters to consider
Water temperature measurement by ground water observation hole
as a function of elevation (by Iwate Prefecture/Tohoku Univ./Yachiyo Engineering)
Matters to consider
Cooling water temperature setting with emphasis on economical operation
RF:　35℃⇒65℃
Cryo:　32℃⇒37℃
･････
Air conditioning temperature setting with emphasis on economical operation
Temperature of the under-ground (13.4℃) + α　=　18℃ - 22℃
elevation(m)
ILC

67. Design of Air Conditioning System
Air handling Unit at the Surafce
Cooling water system for air
conditioning in the ML tunnel
(1) Distributed Fan Coil Unit.
(2) 7degree chilled water is supplied
for FC (piping with 200A).
(3) Chilled water is produced with
Chiller unit located at the AS.
Air handling Unit in Tunnel
Distributed Fan-Coil Unit in RF Tunnel,
no FC in accelerator tunnel.