At present, three Sany HBT60A-1406 gate valve pump is Liuyang River Tunnel to create "waterproof clothing." Liuyang River Tunnel is a section of Wuhan-Guangzhou passenger dedicated line, the tunnel of 10.115 kilometers in length, located in the eastern part of Changsha City in Hunan Province, the project started in the south of Xiaoxiang West Road, crossing Xiaoxiang West Road, Beijing-Zhuhai Expressway 8 cities and highways The main road and the famous Liuyang River, finally Airport Expressway. It is the first shallow single-track double-track railway tunneling through cities, highways and rivers in China and also the highest and most comprehensive tunnel in China's passenger railway under construction. Waterproofing is the most important protection for underwater tunnels. In the construction, the tunnel will be fully enclosed waterproof technology, through the excavation before blocking water, the second lining before the implementation of waterproofing, secondary lining of self-waterproof and construction joints, deformation joints waterproofing and other measures for the tunnel put on three "waterproof clothing ". In order to ensure smooth pumping of concrete, the project department of China Railway Bureau decided to adopt three high-performance SANY HBT60A-1406 gate valves to complete the concrete pumping work in the tunnel after many experiments. According to service engineer Liao Mingwei introduction, Sanyituan pump from the date of the start of the tunnel, stationed on the site, the main tunnel roofing concrete pouring work. Liao Mingwei told reporters, do not look at the construction of the pump in the ground, in fact, and the construction of the ground is no different, safe and stable performance of the equipment to ensure the smooth progress of the project. The total duration of tunnel excavation 18 months, is expected to be completed by June 2009 opening to traffic.
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