Asian Region Detector Hall Design

ASIAN REGIONDETECTOR HALL DESIGN

March 22, 20121130 – 1145

1

Outline Design Concept & Hall Layout Access Tunnel Top heading Tunnel Displacement of detector hall by push-

pull operation

2

Design Concept Ensure the area is for detector

assembly Garage space for ILD and SiD Sufficient tunnel section should be

ensured for transportation of a part of detector

Utility cavern for conventional facilities

3

A Birds-eye View

4

Detector Assembly area

SiDILD

Garage

Beam tunnel

Detector Hall

Overhead crane

A

A

Section A-A

Assembly area is located in front of the junction of access tunnels

Beam tunnel is up to crossing point of access tunnel Garage for ILD and SiD is placed on the both side of

cavern Capacity of overhead crane is 250 ton 5

Utility cavern

Access Tunnel

Detector Hall

SiDILD

With 11m width access tunnel for SiD and ILD installation Two access tunnels are connected on the same side of cavern Access tunnels are connected at the same floor level of cavern’s bottom floor Utility cavern is placed for utility (electric facilities, parking, various rooms…) Small access tunnels are connected to the garages for the pass Ventilation shaft is placed at utility cavern

Small Access Tunnel

6

Ventilation shaft

Access Tunnel The dimension of access tunnels are

determined by the transporting maximum component size of detector

Small Access Tunnel is used for personal passageway

7

Top Heading Tunnelfor The Hall

The tunnel is utilized for initial excavation (arch excavation) during construction phase and for ventilation during operation phase

8

Displacement analysis by 3D FEM Detector ILD and SiD are heavy Displacement surround detector

hall should be confirmed during operation (push-pull)

Analysis Condition Method: 3D Elastic FEM analysis Cavern shape: simplified shape (I-

type cavern) Model: H500m x W500m x L520m

(cover 200m) Rock properties: based on an

investigation at candidate site Rock support: not considered

500m

25m237.5m 237.5m120m

200m

200m

40m

120m

500m200m

9

Push-Pull

ILD: 14,700 tons SiD: 8,600 tons Detector is sit on a

platform(concrete, t=3m)

Loaded on the platform as a uniformly-distributed load

ILD SiD

ILD

Before installation

ILD off-lineSiD on-line

SiD

Loading condition LOS

Loading condition LSO

ILD SiD

Loading condition OLS

Loading condition Nothing

Both off-line

ILD on-lineSiD off-line

Beam line

Detector ILD or SiDPlatform20m*20m*t3mConcrete slabt=3m

10

Result of analysis(Base concrete slab deformation)

Loading condition LOS (mm)

Loading condition LSO Loading condition OLS

Loading condition LOS Loading condition LSO Loading condition OLS

11

Displacement for each section(Floor Level)

Line- X0LFloor level

ILD off- line section

- 1.5

- 1

- 0.5

0

- 300 - 200 - 100 0 100 200 300

x- axis (m)

Ver

tical

dis

plac

emen

t (m

m)

LOSOLSLSO

Line- X00Floor level

Beam line section

- 1.5

- 1

- 0.5

0

- 300 - 200 - 100 0 100 200 300

x- axis (m)

Ver

tical

dis

plac

emen

t (m

m)

LOSOLSLSO

Line- X0SFloor level

SiD off- line section

- 1.5

- 1

- 0.5

0

- 300 - 200 - 100 0 100 200 300

x- axis (m)

Ver

tical

dis

plac

emen

t (m

m)

LOSOLSLSO

ILD SiD

Beam line section

SiD line section

ILD line section

Line- Y00Hall Bottom Level

Longitudinal center line

- 1.5

- 1

- 0.5

0

- 300 - 200 - 100 0 100 200 300 400

y- axis (m)

Ver

tical

dis

plac

emen

t (m

m)

LOSOLSLSO

Longitudinal section

12

Displacement(Beam line elevation)

Loading condition LOS

-250

-200

-150

-100

-50

050

100

150

200

250

-200

-150

-100

-50 0

50

100

150

200

250

300

-0.4

-0.3

-0.28

-0.26

-0.24

-0.22

-0.2

-0.18

-0.16

-0.14

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

ILD SiD

Loading condition LSO

-250

-200

-150

-100

-50

050

100

150

200

250

-200

-150

-100

-50 0

50

100

150

200

250

300

-0.4

-0.3

-0.28

-0.26

-0.24

-0.22

-0.2

-0.18

-0.16

-0.14

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

ILD SiD

Loading condition OLS

-250

-200

-150

-100

-50

050

100

150

200

250

-200

-150

-100

-50 0

50

100

150

200

250

300

-0.4

-0.3

-0.28

-0.26

-0.24

-0.22

-0.2

-0.18

-0.16

-0.14

-0.12

-0.1

-0.08

-0.06

-0.04

-0.02

0

ILD SiD

13

Summary Assembly space is ensured Detector garages are placed Utility cavern is constructed separately Sloped access tunnel has a enough size to transport

detector parts Top heading tunnel is constructed for excavation and

ventilation The maximum displacement at the floor level is

under 1.3mm The maximum displacement at the beam tunnel

elevation is under 0.4mm14