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As of September 30, 2004

Physical Progress

Contractor

Matsushita - Itochu Consortium

Commencement of the Works

13 March 2002

Contract period 1080 days (Until March 12, 2005)
Time Elapsed (days) 920 of 1080 (85.1%) Remaining 182 days

Progress

 
  Continue the work for the Water Supply & Treatment System, Ventilation Adit Building, and Tunnel Ventilation System.

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Construction Supervision

Summary

Water Supply and Treatment System: Install the reinforcing the steel bars and buried pipes, water pipe in the main tunnel and finish the building work of intake reservoir 

Ventilation Adit Building: Place concrete for columns, beams and walls and  install the frame work for ceiling

Tunnel Ventilation System: Install EP fan and conection duct for EP1 & 3, finish the assembling of Jet Fan and anchoring, import equipment and install the Console and Measuring Panel at OCC and measuring panel and Interlock Panels at SS5.

Construction Supervision         

1. Water Supply & Treatment System

 

(1) High Level Reservoir

- Form work & reinforcing bar installation for wall

(2) Water Treatment System at OCC

- Get approval of Water treatment plant

(3) Water piping and Hydrant

Intake Reservoir

- Finishing work (water proofing & tiling) Oct 3~

Drill Shaft

- Install rising pipe for Drill Shaft

2. Ventilation Adit Building

 

(1) Construction of building

- Concrete being placed for columns, walls & chimney

- Finishing work for S/S 6

(2) Ventilation Adit Connection

- Concrete placing for Separation wall & Entrance wall

- Place ALC boards for ceiling

- Form work & concrete placing for Sub-station base pit

3. Tunnel Ventilation System

 

(1) Electrostatic Precipitator System

<EP1 & EP3>

- Install EP units

- Form work & concrete placing for Electric room pit

- Form work & concrete placing for Auxiliary machine room base

- Continue placing ALC boards for ceiling

<EP2>

- Install Bell mouth

- Assemble EP Fan pedestal

- Continue placing ALC boards for ceiling

- Install steel bars & concrete placing for Separation walls

(2) Jet Fan System

- Install brackets

- Install Jet Fan power cables in main tunnel

- Start installation of Jet Fans (Oct 18~)

(3) Air Supply/Exhaust Ventilation System

 

(4) Ventilation Control System

- Install conduits for Traffic counter

- Install conduits for Measuring instruments on the wall of main tunnel

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