A single-arm bridge erecting machine, which is the largest tonnage machine of its kind for box girder installation on high-speed railways in China and designed by a unit of China Railway No.4 Engineering Group Co., Ltd. (CREC4), has won patent authorization from China National Intellectual Property Administration for its appearance design.
Previously, constructors from CREC4 Eighth Engineering Co., Ltd has established the Anhui Provincial Rail Technology and Supporting Equipment R&D Engineering Research Center, which designed and made the JQBS1100-type single-arm bridge erecting machine, winning the CNIPA honour recently.
By changing the installation method of the bridge erecting machine, the new machine is able to quickly and conveniently achieve the installation of double-track box girders with a span of 40 meters or less and single-track box girders with a span of 32 meters or less. With strong adaptability to working conditions, it can effectively reduce labor cost, and large shorten the construction period.
Currently, the single-arm bridge erecting machine has been successfully used in the construction of the 76-kilometer Chaohu-Maanshan high-speed railway, an intercity railway linking two key prefecture-level cities in Anhui Province in East China. It successfully completed the installation of double-track box girders with a span of 40 meters on the railway.
The HSR, starting its construction on October 28, 2019, is scheduled to start operation in 2026. Maanshan, a prefecture-level city sitting on both banks of the Yangtze, the country’s longest river, borders the provincial capital of Hefei on the west, while Chaohu is a county-level city under the provincial capital of Hefei.
Starting from Chaohu East Railway Station, the Chaohu-Maanshan HSR will extend eastward through Hanshan County, Hexian County, Zhengpu Port New Area, Dangtu County, Maanshan’s Economic Development Zone, Yushan District and Huashan District, before ending at Maanshan East Station. With a designed speed of 350 kilometers per hour for the trains, the HSR will have five stations, including Chaohu East (existing), Hanshan, Zhengpu Port, Maanshan South and Maanshan East (existing).
Upon operational, the HSR will add a new and fast link to both sides of the Yangtze River, marking great significance in connecting the Hefei metropolitan area and the Nanjing metropolitan area in neighboring Jiangsu Province, and boosting the integrated development of the Yangtze River Delta region as well as the construction of the Yangtze River Economic Belt.