Dismantling support steel frames
Carrying out final construction
The Kuangping Road and Kaiyun Street interchange consists of four levels. The first level: Kaiyun Street underpass, an underground passage, passes under the No. 54 tram and Kuangping Road, parallel to Kaiyun Street, with a total length of 575 meters; the second level: the existing ground level of Kuangping Road and Kaiyun Street; the third level: the main line elevated bridge, parallel to Kuangping Road, crossing over Kaiyun Street; the fourth level: the ramp bridge from Kaiyun Street to Hongqi Street, crossing over the main line elevated bridge, parallel to Kaiyun Street.
On October 11, the reporter saw at the construction site that workers were discussing the painting project of the bridge. Under the bridge, workers were laying square bricks on the sidewalk. "During the National Day holiday, the workers gave up their rest. In order to ensure that citizens can commute normally after the long holiday, the workers worked hard and all ramps were opened to traffic after the holiday," said Liu Fengyi. After more than two years of arduous construction, the project is now basically nearing completion. The high-risk construction over the railway and the high-support formwork construction have been completed. Except for the sound barrier and anti-corrosion painting work, the bridge project has been completed according to the established goals.
Liu Fengyi told the reporter that the actual start date of the Kuangping Road and Kaiyun Street interchange project was June 10, 2012. Due to the influence of the window time for construction over the railway, the planned completion date of the main bridge project was October 30, 2014. At the end of July 2012, the first pile foundation construction of the Kaiyun Street underpass began. In early April 2013, formal groundbreaking started. On October 10, 2013, simple traffic was realized. The bridge project reached traffic conditions on September 30 this year. On October 7 this year, the interchange function was fully realized, 30 days ahead of schedule.
"Everyone in engineering knows that for the same urban construction project, the construction period in the north is much longer than in the south," Liu Fengyi said. The planned construction period is more than two years, over 700 days. Because Changchun is a severe cold region, the effective construction time is short. In order to minimize the construction period, from the beginning, the labor force at each work point and cooperative team was reasonably arranged, and mechanical equipment was configured with a slight surplus to ensure that all work faces that could start would start as early as possible. At peak times, the manpower invested reached about 1,600 people. From the project management personnel to the construction workers, there was no concept of holidays during the construction period. Except for special circumstances, they generally worked for half a year without going home. During the intense construction period, the construction site implemented a shift work system, basically achieving "people stop, machines don't stop." At the same time, the project department also set aside a special reward fund to encourage various teams to carry out lively labor competition activities, which greatly mobilized the enthusiasm of the participating construction teams and provided a guarantee for completing the task ahead of schedule.
The reporter noticed that the road markings, traffic signs, and ground traffic signal lights on each ramp have been basically installed. Citizens driving through can choose the road according to their destination. According to the work arrangement of the construction unit, the remaining work mainly includes anti-corrosion painting of the outer surface of the bridge, laying square bricks on the ground road, overall decoration of the Kaiyun Street underpass, and installation of mechanical and electrical lighting systems. Among them, the painting of the main line bridge is currently 50% completed. Before October 20, 2014, the main line will be fully completed and 40% of the ramp bridges will be completed. Ancillary projects such as square brick laying, attached drainage pipes, and crash wall connection plates will be completed before October 30. At the same time, the final cleanup work is currently being carried out in completed sections. Most of the materials, machinery, and construction waste on site have been cleared away, ensuring that the goal of "work completed, site cleared, materials clean, and environment tidy" is achieved before the 30th.
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