The northernmost high -speed rail to Yichun high -speed rail under construction in China (hereinafter referred tospan> Construction on Wednesday on Wednesday. After opening to traffic, it will greatly shorten the space -time distance between major city groups along the line.notCCTV reported that the construction of the first working site from Harbin to Tieli section entered the construction on Wednesday (October 13), marking the construction of the Hiyi high -speed rail.notThe Iranian high-speed rail is the extension of the "eight vertical and eight horizontal" high-speed railway network Jingha-Jing, Hong Kong, Hong Kong, and Macao.The construction period is five years.notThe Yigao high -speed rail has set up Harbin, Harbin North, Hulan North, Xinglong Town West, Suihua South, Qing'annan, Tieli, Sun Moon Gorge, Yichunxi Nine Stations.For the rebuilding station, Harbin and Harbin North Station is existing stations.notThe Ig High -speed Railway is composed of Harbin to Tieli section and Tieli to Yichun section. Among them, the Ichun period has started in October 2021. It has created a number of records during the construction process.The high -speed railway with the largest temperature difference and the first year throughout the year, the first annual temperature difference, and the first time it has passed through the island -like frozen soil areas.notThe second -time construction of the Harbin to Tieli section is 188 kilometers in length. It is located in high -cold regions. The geological structure along the line is complex. It is distributed in multiple seasonal frozen soil, with a maximum frozen depth of 2.39 meters.Changes in temperature are easy to form frozen expansion and melt, which brings great difficulty to the construction of bridges, roads and station buildings.notThe new line bridge accounts for 72%, and the bridge large -span continuous beam and the beam beam project control the entire construction period. Among them, the Hulan River Bridge has a total length of 1,6709 meters.project.notAfter the opening and opening of the Iranian high -speed railway, the space -time distance between the main cities along the main cities along the line will be greatly shortened, forming a "one hour, two -hour" transportation circle centered on Harbin, and interconnection with the high -speed rail network in Heilongjiang Province.National high -speed rail network.