May 15, 2023
The reporter learned from the construction side of Sanqing Expressway in Yunnan.,00 on May 11,With a weight of 240 tons、The bridge erecting machine, about 70 meters long, will be the last one.TThe beam landed smoothly on the pier.,Qingshui Interchange of Yunnan Qujing Sanbao-Kunming Qingshui Expressway Successfully Completed the Construction Task of Underpassing Shanghai-Kunming High-speed Railway,The key nodes of the whole line have been opened.。
Qingshui Interchange of Qujing Sanbao-Kunming Qingshui ExpresswayGOverlapping of 85 Yinkun Expressway,Four ramps underpass the Shanghai-Kunming high-speed railway,There are many high-voltage electric towers,Karst is strongly developed in the bridge group site area.,The construction environment is complex,High grade of technical gauge,It is a key and difficult project of the whole line.。A total of 125 iron frame beams were involved.,Relating to a high-speed railway operation linksⅢLevel I construction, 4 places and 8 spans in total,The maximum transverse slope of the main span bridge line under the railway is 6.%、Maximum longitudinal slope 4%,Large span、Small radius、Limited headroom,The technical conditions are extremely complicated.。
In order to ensure the safe and smooth construction of beam erection at night under the Shanghai-Kunming high-speed railway,The project department has drawn up a detailed special construction plan and contingency plan.,Comprehensively strengthen site construction management,The construction of all iron frame beams was completed safely and smoothly.。
Source:CCTV news client(Reporter:Liu Wenjie)
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