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As of November 30, 2003

Physical Progress

Contractor

JV of Dong Ah and Song Da

Commencement of the Works

1st October 2000

Contract Period

1460 days (Until September 30, 2004)

Time Elapsed (days)

1140 of 1460 (78.08%) Remaining 320days

Progress

Main Tunnel(2417m)

Excavated 2379m in total (100%)

Evacuation Tunnel(2429m)

Excavated 2411m in total (100%)

Access Road to Water Reservoir.

Completed

Bridge No.1(58m)

Concrete work for cross beam & slab reinforcement.

Others

 

 

Photographs

South Tunnel Portal - November 2003
Construction of Center Drainage
Embankment of Subbase for Main Tunnel
Installation of Formwork for Side Drain
Inspection and Handing - over of Eastern Cable Duct
Placement of Concrete Lining for Main Tunnel
Drilling Face for Bench Excavation
Mucking of Bench Excavation
Loading For Evacuation Tunnel
Drilling Face for Electrostatic Precipitator No.2
Bridge No.1
Tunnel Breakthrough Ceremony at South Tunne l Portal

Top

Construction Supervision

Summary from Contractor

Main Tunnel breakthrough ceremony was held on 7th November 2003, Evacuation Tunnel excavation was completely finished by 30 November 2003.

Bench excavation was completed to the contract limit at Sta. 2+397.825 then continued for PKIA and expected to finish by 10th December 2003. Total 155.2m excavated on East side and 163.1m excavated on West side.

Tunnel lining continued with 49m of main tunnel, 31m of layby completed.

Electrostatic Precipitator No. 3 is completed and for handed over to PK4 by 1st November 2003.

Start excavation of EP No. 2 up to 30th November 2003, giving a total length of 78.8m from Sta. 0+111.6 to 0+153.1.

PKIB contractor managed to improve progress of the side drain and cable duct/trough. During October zone P was completed and handed over to PK4 contractor to commence fire main installation works.

Construction Supervision by Engineer

Main Tunnel

Finished excavation and breakthrough held on 7th November 2003

Face No.7

- 97m of Top Heading excavated from 2+781.5 to Sta. 2+878.5

Bench excavation

- 155.2m on East side from Sta. 2+423.6 to 2+578.8 and 156.3m on West side between Sta. 2+397.8 to 2+554.1 and 6.8m from Sta. 2+675.8 to 2+669

Tunnel Lining

Concrete for Foundation Beam -91.8m Fr. St. 2+306 to Sta. 2+397.8 (West Side)

Concrete for Foundation Beam -125.7m Fr. St. 2+272.1 to Sta. 2+379.8 (East Side)

Total quantity 112 m3

Concrete for Foundation Beam completed.

Concrete for Tunnel Lining - 49m (4 blocks) from St. 2+203.325 to Sta. 2+252.325 and Layby lining 31m (5 blocks)

Total quantity 1228m3

Installation of mole drain 94.5m

Installation of waterproof membrane 90m

Placement of concrete for side drain

212.4m (East side)

443.6m (West side)

Placement of concrete for cable duct - (East side) 295.9m and cable trough - (West side) 552.9m

Placement of concrete for construction of centre drain 550.5m

Evacuation Tunnel

A total of 68.4m of Evacuation Tunnel was completely finished excavated from St. 2+792.7 to Sta. 2+861.1 over the reporting period. Giving a total length of 2861.1m of tunnel excavated to date.

Bridge No. 1

Continued with placement of concrete for cross beam and slab reinforcement

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