台北捷运CG590C标段开标

Contract CG590C for the eastern end of Xindian-Songshan MRT Green Line, worth USD220 million, was signed with Da Cin Construction on 29th March, 2006. This 3.02 km-long section, scheduled to be completed at the end of October 2012, includes two underground stations (Nanjing Sanmin and Songshan), a crossover section, a tail-track work shaft and three shield-driven tunnel sections. The western edge of the construction begins from Taipei Stadium MRT station at the intersection of Nanjing East Road and Beining Road and is bounded on the east by the Songshan station tail-track work shaft on the west side of intersection of Bade Road and Yucheng Street.The external and internal diameters of the tunnel are 6.1 m and 5.6 m respectively. The tunnel central depth is comprised between 15.7 m and 28.1 m. Most of the tunnel path is located in soft to medium stiff silty clay layers. Underground water level depth is about 2 m. Three EPB shield TBMs will be used, with lining concrete rings consisting of six segments (K type:1 piece, B type: 2 pieces, A type: 3 pieces). Muck wagons for mucking-out.The tail-track work shaft is a cut-and-cover structure with dimension of 42.7 m x 19.1 m x 22.2 m (length x width x depth). The dimension of the Nanjing Sanmin station is 234 m x 36.7 m x 20.2 m (L x W x D). The dimension of the Nanjing Songshan station is 390 m x 23.6 m x 21.2 m (L x W x D). Tunnel construction period: April 2009-August 2010. The scheduled date for completion of other underground structures is January 2011.The Songshan line will connect Nangang line, Danshui line, Xinzhuang line and Muzha line. It will start from the west of Ximen station on the Nangang line. The total length of this line will be approximately 8.5 km featuring eight underground stations. When the line is completed in 2013, the trip from Songshan station to Ximen station will only take 15 minutes. Visit www.dorts.gov.tw/welcome.htm