Taisei Group CSR

Topics : Civill Engineering

Creating social infrastructure that supports people's lives and industry.
Here we introduce some projects such as tunnels, bridges, and dams, etc. recently completed by Taisei Corporation.

Civil Engineering

Metropolitan Expressway Central Circular Route Shinagawa Line

Of the total length of 9.4 km of the Metropolitan Expressway Central Circular Route Shinagawa Line, about 8 km is a tunnel.
In order to complete this long tunnel in a short period of time, excavation with a single shield machine that is unprecedented in the world is being carried out. With the completion of the Shinagawa Line, the whole Central Circular Route will be opened, and this is expected to make a major contribution to solving traffic congestion on the Metropolitan Expressway.

Client : Metropolitan Expressway Company Limited, Tokyo

Design : Tokyo Metropolitan Government

Scheduled completion : March 2013

Location : Yashio, Shinagawa-ku to Aobadai, Meguro-ku, Tokyo

Metropolitan Expressway Central Circular Route Shinagawa Line

Coal Unloading Jetty and Connecting Bridge (Taiwan)

This jetty extends 2.2 km off shore, and was constructed to provide docking and unloading capability for coal ships of up to 150,000 dwt as well as transport facilities for Taiwan Power Company's coal-fi red power plant outside Kaohsiung city. This large-scale jetty construction was undertaken in Taiwan's coastal area of typhoon-prone seas, requiring full implementation of Taisei's most advanced marine engineering know-how.

Client : Taiwan Power Company

Design : Union-Tech Engineering Consultants Co.

Completion : April 2008

Location : No. 125, Minzhi Rd., Qieding Dist., Kaohsiung City 852, Taiwan

Coal Unloading Jetty and Connecting Bridge (Taiwan)

Bangkok Industrial Ring Road, Cable-stayed Bridges (Thailand)

Taisei constructed this pair of steel and concrete long-span hybrid cable-stayed bridges across the Chao Phraya River. These bridges form part of the Industrial Ring Road that connects the Center of Bangkok to the outlying districts. The bridges contribute to economic development in the area by significantly shortening transport time between the southern industrial district and the city of Bangkok, where goods previously had to be transported by ferry.

Client : Ministry of Transport, Kingdom of Thailand

Design : Mott MacDonald JV

Completion : August 2006

Location : Prapadaeng, Samutprakarn, Bangkok City, Kingdom of Thailand

Bangkok Industrial Ring Road, Cable-stayed Bridges (Thailand)

Improvement of Kararo ‒ Wadh Section of National Highway N-25 (Pakistan)

This project is the refurbishment of a total length of 96 km of highway, part of National Route 25 connecting Karachi in Pakistan with Afghanistan. The development of transport infrastructure with Japanese grant aid cooperation contributes to the economic growth developing countries, to reduction of poverty, improvement in law and order, etc.

Client : National Highway Authority (NHA)

Design : INGEROSEC Corporation. Nippon Koei Co., Ltd. JV

Completion : December 2010

Location : Balochistan, Islamic Republic of Pakistan

Improvement of Kararo ‒ Wadh Section of National Highway N-25 (Pakistan)

Bali Beach Conservation Project, Package IV: Shore Protection Works for Kuta Beach (Indonesia)

Artificial beach nourishment work was carried out on the Indonesian island of Bali to protect the sand beach in Kuta district from erosion and simultaneously safeguard the landscape and this major tourism resource. Shore protection was performed by evenly laying sand taken from the seabed and removing unnecessary sea banks and tetrapods. This environmental project also transplanted corals within the reef (35,000 m2) as part of an environmental conservation measure. At present, the lively beach is attracting many tourists and local residents.

Client : Ministry of Public Works of Indonesia

Design : Nippon Koei Co., Ltd. JV

Completion : December 2008

Location : Kuta District, Bali, Republic of Indonesia

Bali Beach Conservation Project, Package IV: Shore Protection Works for Kuta Beach (Indonesia)

Hokuriku Shinkansen, Jinzu River Bridge

The Hokuriku Shinkansen (between Nagano and Kanazawa) is in the final stages scheduled for completion at the end of 2014.
Taisei has constructed a 4-span, 428 m long PC extradosed bridge over the Jinzu River. The construction was constructed safely under severe conditions, with a conventional railway line running beside it.

* A new structural shape intermediate between a cable-stayed bridge and a girder bridge

Client : Japan Railway Construction, Transport, and Technology Agency

Design : Tonichi Engineering Consultants, Inc.

Completion : October 2012

Location : Toyama City, Toyama Prefecture

Hokuriku Shinkansen, Jinzu River Bridge

Okukubi Dam

This is a multi-purpose dam constructed for water supply, supply of irrigation water, and flood control on the Okukubi River that flows through the eastern part of Okinawa Prefecture. This was the first time that the "CSG construction method*" was adopted in Japan, through which cost reduction and decrease in the environmental load was achieved by effectively using the materials that could be obtained locally.

* A construction method in which cement is added to and mixed with locally available materials (sand, gravel, etc.), which is then leveled and compacted.

Client : Development and Construction Department, Okinawa General
Bureau, Cabinet Office

Design /Associated Consulting : Client / Nippon Koei / Crearia Inc. / Public Association for Construction Services, Okinawa Region

Completion : March 2013

Location : Kin, Kunigami-gun, Okinawa Prefecture

Okukubi Dam

Namikata National LPG Stockpiling Base

A large tunnel is being constructed in bedrock 180 m below ground, to create the world's largest water sealed underground bedrock stockpiling base in which liquefied petroleum gas (PLG) is contained by the groundwater pressure. This space will store 450,000 tons of the 1.5 million tons storage that is planned in the fundamental energy plan.

Client : Japan Oil, Gas and Metals National Corporation

Design : J-Power, Mitsubishi Materials, JX Nippon Exploration and Development Co., Ltd. Joint Venture

Completion : March 2013

Location : Namikata, Imabari City, Ehime Prefecture

Namikata National LPG Stockpiling Base

Kawagoe Thermal Power Station LNG Facility

This is an above ground LNG tank constructed using the "DUAL PC dike" developed by Taisei Corporation. The tank capacity, 180,000 kL, is the largest in Japan; and in 2013, two LNG tanks were completed by the "DUAL PC dike" method.

Client : Chubu Electric Power Company, Inc.

Design : Taisei Corporation

Completion : March 2013

Location : Kawagoe, Mie-gun, Mie Prefecture

Kawagoe Thermal Power Station LNG Facility
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