13.5 km eastern extension of Line 1 along Changâ€â„¢an Street between Xidan and Bawangfen which has been under construction since 1996 should be completed by May, 2000 at a cost of $0.9 billion. Test operations underway on 10.7 km section between West Tianâ€â„¢anmen Square and Sihui and work proceeding on section between Tianâ€â„¢anmen Square and Xidan. Westside South-North Line with total length of 19.5 km under feasibility study. Contact Gao Yucai, MD, Beijing Mass Transit Railway Corporation, No 2 Beiheyan Road, Xicheng District, Beijing, China 100044, tel +86 10 832 0560, fax 832 0077. November 1999.
Metro line 5 will be constructed by Beijing Underground Construction Group Pte Ltd using new 6.2 m-diameter Herrenknecht EPB value $5 million. Visit www.herrenknecht.com May 2000.Five sections of Line 5 from Dongdan north to Yonghegong will be constructed by Beijing Underground Construction Group using a new Herrenknecht 6.2 m-diameter EPB scheduled for delivery November, 2000. Lining will comprise six-piece 1.2 m-wide segmental concrete rings with i.d. 5.4 m. The first job in January, 2001 will be a test tunnel from Beixinqiao to Yonghegong in Quaternary clayey soil with sand, gravel and silt with 25 mm maximum particle size where the water table is at 6 m to 10 m below surface level. Visit www.herrenknecht.com June 2000.
Beijing No 5 Subway Line Investment Co Ltd, 37.5% owned by SNC-Lavalin, has secured $1.45 billion funding to start five-year construction of 27.6 km-long No 5 line. Final design approved for link between Songjiazhuang in Fengtai district in the south to Taipingzhuang in Changping district in the north, and 700 m-long test section is under construction. Visit www.snc-lavalin.com and www.herrenknecht.com 18/01.
Herrenknecht reports 6.2 m EPB launch from shaft at Lama Temple for 680 m drive to Beixinqiao Station at an average depth of 20 m in silty clays, fine sands and gravels with maximum water table 10 m above crown. First 60 m completed using screw conveyor to skips, then backup taken underground and connected. Precast concrete ring with straight, right and left segments, 1.2 m-long and 300 mm-thick. Average 2 rings/12h-day, max 3 rings during launch. Non-cement grout pumped from surface to tailskin. Herrenknecht responsible for first 100 m of excavation including site set-up, settlement control, ring quality and training. Visit www.herrenknecht.com 31/01.
Construction of No. 13 subway line between Beijing urban ring and international airport announced at 5th Beijing-Hong Kong Economic Co-operation Symposium. Line will be 18.15 km-long with 1.63 km at grade, 12.82 km elevated, and 3.7 km underground, and will start driving north-east at Wangjingxi station and have nine stations. Cost estimated at 4.3 billion yuan for construction between January, 2002 and December, 2004. Overseas investment invited. Visit www.xinhua.net 45/01.