| |
Progress
Report > Package IV - Mechanical
Works
Physical
Progress | Photographs
| Construction Supervision
As of
May 31 , 2005
|
Contractor
|
Matsushita
- Itochu Consortium
|
|
Commencement
of the Works
|
13
March 2002
|
| Contract
period |
1080
days (Until March 12, 2005) |
| Time
Elapsed (days) |
1130
of 1080 (104.53%) Remaining 14 days |
|
Progress
|
|
| |
Mainly
system commissioning |
Photographs
 |
Waterproofing
for air duct separation wall at EP1
|
 |
Air
duct & entrance door of EP3
|
 |
EP
fan & air duct of EP3
|
 |
Duct
& nozzle of EP3
|
 |
Exhaust
fan motor
|
 |
Measuring
ventilation air velocity
|
 |
Emergency
call & fire fighting niche door
|
 |
Fire
fighting equipment in the niche
|
 |
Emergency
response training
|
 |
Electric
barrier at north portal
|
 |
Installing
ladder
|
 |
Ladder
of chimney
|
 |
Paving
around VAB
|
 |
Fixed
point view
|
Summary
Up to 31
May 2005 the system were completed for operation.
Water
Supply and Treatment System:
|
1
|
Intake
Reservoir
|
10m3
with level sensing switch (H, LL)
|
|
2
|
Centrifugal
Pump
|
4.0m/h
x 122mH, 3ph-415V x 3.0kW x 2 sets
|
|
3
|
Water
Treatment System
|
Multi-media
Filter (Sand Filter)
UV
Disinfector
Anthrazite
Filter
Chlorine
Dosing System
|
|
4
|
Roof
Tank
|
5m3
(2 x 2.5m3) with 2 x level sensing switch (HH, H, L, LL)
|
|
5
|
High
Level Reservoir
|
100m3(2
x 50m3) with 2 x level sensing switch (HH, H, L, LL)
|
|
6
|
Drill
Shaft
|
About
240m long piping from HLR to fire suppression pipe of the
main tunnel including about 64m long down pipe
|
|
7
|
Fire
Suppression Pipe
|
Approx.6,330m
long pipe along the walkway including total 123 sets hydrants
at 50m intervals, 20 sets of independent hydrants inside and outside
the main tunnel
|
|
8
|
Fire
Fighting Facilities
|
Total
123 sets of foam fire fighting equipment and fire extinguishers
equipped in the fire fighting niches
|
|
9
|
Irrigation
Pipe
|
145m
long pipe with 5 sprinkler faucet for North portal
120m
long pipe with 4 sprinkler faucet for South portal
|
Ventilation
Adit Building:
(1)
Ventilation Adit Building
This building
locating Air Supply and Exhaust Ventilation System is connected to Ventilation
adit for supply and exhaust air to and from the main tunnel. Total floor
area is 1,246.8m2, Electric room area consisting of 7 rooms is 145.2m2,
Mechanical room for Supply/Exhaust fan is 639.0m2 and Air duct for connecting
Ventilation adit is 462.6m2. Height of the rooftop is 12.8m and height
of the chimney is 25.8m
(2)
Ventilation Adit Connection
Ventilation
Adit Facilities include building of electric rooms, airconditioning,
ventilation, Duct and nozzle, Air outlet barrier, Corner vane, Mesh
fence, Lighting and etc…
Tunnel
Ventilation System:
(1) Electrostatic
Precipitator System
3 x EP
System of air volume 260m3/s and soot collecting efficiency 80~87% complete
with 2 x 220kW EP fan for each station, auxiliary machines, high voltage
generators, control systems and building of EP chambers including air
conditioning, lighting and etc…
(2)
Jet Fan System
23 x Jet
fans with impeller of 1520mm in diameter and capacity of average air
velocity 30.2m/s, 23 x Jet fan switching panel, 12 x Jet fan local switch
box, power cables and ground cables to be installed in the walkway of
the main tunnel and etc…
(3)
Air Supply and Exhaust Ventilation System
2 x 420kW
Supply fan with air volume 140m3/s, 2 x 330kW Exhaust fan with air volume
140m3/s, 4 x Damper, Air ducts, Air nozzle, Corner vane, Operation air
supply equipment, 10t and 5t Overhead traveling crane, 4 x Power supply
panel, 2 x Local control panel and etc…
Construction
Supervision
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