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New progress has been made in the construction of this expressway in Yunnan!

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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