PROJECTSubway tunnels

Subway tunnels

Project Category Client Contractor Period
Daegu Subway Line 2 Gyeongsan Extention (C2-1) T / K Basic design Daegu Metropolitan Urban Railroad Construction Kolon Global September 01, 2006 ~ April 30, 2007
Seoul Subway Line 7 Extention
(Onsu~Bupyeong-gu office ) (C701)
Alternative design Seoul Metropolitan Government Office of Subway Construction Daelim Industrial July 05, 2004 ~
August 31, 2005
Seoul Subway Line 9 (C902) (Structure) Alteration design Seoul Metropolitan Government Office of Subway Construction Hyundai E & C January 07, 2004 ~
September 30, 2004
Seoul Subway Line 9 (C911)
(Redesign of vertical vent)
Alteration design Seoul Metropolitan Government Office of Subway Construction Daewoo E & C September 15, 2003 ~
August 30, 2004
Seoul Subway Line 9 (C910) (Redesign) Alteration design Seoul Metropolitan Government Office of Subway Construction Dongbu Corporation August 04, 2003 ~
December 31,2003
Seoul Subway Line 3 Extention (C301) T / K Basic & Detailed design Seoul Metropolitan Government Office of Subway Construction Daewoo E & C September 22, 2003 ~
August 31, 2004
Seoul Subway Line 9 (C911) (Vents of 918) Alteration design Seoul Metropolitan Government Office of Subway Construction Daewoo E & C April 15, 2003 ~
May 31, 2003
Seoul Subway Line 9 (C902)
(Temporary retaining structure & tunnel)
Alternative design Seoul Metropolitan Government Office of Subway Construction Hyundai E & C February 19, 2003 ~
August 30, 2003
Bundang Line Wangsimni ~ Seonreung (C3) (Roadbed) Alternative design Seoul Metropolitan Government Office of Subway Construction Samsung C & T April 22, 2003 ~
June 24, 2003
Seoul Subway Line 9 (C914) Alteration design Seoul Metropolitan Government Office of Subway Construction Doosan E & C June 01, 2002 ~
September 30, 2002
Seoul Subway Line 9 (C902) Alternative design Seoul Metropolitan Government Office of Subway Construction Hyundai E & C March 20, 2002 ~
June 30, 2002
Busan Subway Line2 (C230)
(Suyeong-gang riverbed tunnel)
Alteration design Busan Transportation Corporation Doosan E & C May 21, 2001 ~
August 21, 2001
Seoul Subway Line 9 (C911) T / K Basic & Detailed design Seoul Metropolitan Government Office of Subway Construction Daewoo E & C May 21, 2001 ~
June 30, 2002
Seoul Subway Line 9 (C910) T / K Basic & Detailed design Seoul Metropolitan Government Office of Subway Construction Dongbu Corporation January 19, 2001 ~
February 28, 2002
Gwangju Subway Line 1 (C1) Technical Consulting Gwangju Metropolitan Subway Construction Headquarters Sungwon Corporation December 01, 1998 ~
November 30, 1999
Gwangju Subway Line 1 (C1) Technical Review Gwangju Metropolitan Subway Construction Headquarters Sungwon Corporation January 01, 1998 ~
March 31, 1998
Seoul Subway (C726) Technical Consulting Seoul Metropolitan Govenment Office of Subway Construction Shinhan E & C August 01, 1997 ~
October 31, 1997
Seoul Subway Line 7 (C720)
(Alteration design according to waterproofing method)
Alteration design Seoul Metropolitan Govenment Office of Subway Construction Hanjin Construction
(now Hanjin
Heavy I & C)
February 24, 1997 ~
June 24, 1997
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