Kumagai Gumi

Technology/Major Contracts

Overseas Projects - Civil

Energy Facilities

Dai Ninh Hydropwer Project, VIETNAM

Dai Ninh Hydropwer Project, VIETNAM

Completed in 2007
Client: Electricity of Vietnam
Project Outline: The construction of a 11.3km-long headrace tunnel (7.1km by TBM and 4.2km by NATM) comprising a 300MW power station, a 2.2km-long penstock foundation, a 15km-long maintenance access road, a 1.8 km-long inlet canal with an intake structure, and a 11km-long river training.

New Wu-Chieh Diversion Tunnel, TAIWAN

New Wu-Chieh Diversion Tunnel, TAIWAN

Completed in 2005
Client: Taiwan Power Company
Project Outline: The construction of a 10.854m-long headrace tunnel comprising 7,265m by hard rock TBM, 3,123m by NATM, and a 466m open channel.

Sipansihaporas Hydroelectric Power Project, INDONESIA

Sipansihaporas Hydroelectric Power Project, INDONESIA

Completed in 2004
Client: PT PLN (PERSERO)
Project Outline: The construction of hydroelectric power generation facilities with total capacity of 50MW comprising 2 nos. regulating dams, a 8,791m-long headrace tunnel, a surge tank, a penstock, 2 nos. power plants, and a 5,610m access road.

Ham Thuan - Da Mi Hydropwer Project, VIETNAM

Ham Thuan - Da Mi Hydropwer Project, VIETNAM

Completed in 2001
Client: Electricity of Vietnam
Project Outline: The construction of hydroelectric power generation facilities comprising 1 no. main dam, 4 nos. auxiliary dams, a 2,535m long headrace tunnel, a 500m-long diversion tunnel, a 1,011m-long penstock, a 100m-high surge tank, a spillway, an intake, and a powerhouse.

Besai Hydroelectric Power Plant, INDONESIA

Besai Hydroelectric Power Plant, INDONESIA

Completed in 2000
Client: PT. PLN (PERSERO)
Project Outline: The construction of hydroelectric power generation facilities comprising a concrete gravity dam, an intake structure, facilities and diversion channel, a 4,893m-long headrace tunnel, a penstock, a power plant, and a switchyard.


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