The third phase of Xi'an Metro Line 1 successfully worn the Xulan high -speed rail under the third phase

On August 2nd, the construction of the third phase of Xi'an Metro Line 1 of the project ushered in an important breakthrough. The key control project with the most difficult technical difficulty and the highest safety risk level of Metro Line 1 has been successfully completed. At the same time, it has successfully overcome the project technology problem of the base section of the high -speed railless road bed road.

The third phase of the Xi'an Metro Line 1 is about 672 meters long, the tunnel is about 18.2 meters to 21.1 meters, the line spacing is 17.0 to 19.27 meters, and the shield structure is below the water level line. According to the design requirements of the subway line, the shields in this area need to continue to penetrate the high -speed railway without the base section of the high -speed railway, Longhai Line, and Xianyang West Freight. In the process of crossing, it is necessary to ensure the normal advancement of the shield, but also cannot disturb the high -speed rail lines. It has high requirements on the construction of the shield. It is the first domestic case. It is the control of the entire line and the heavy difficult project.

In response to this technical problem, the Municipal Railway Group and the participating units China Electricity Construction and the Xi'an Railway Bureau specially set up special work classes. More than 30 domestic authoritative experts have been invited to repeatedly demonstrate the design and construction schemes and actively carry out technical research. During the next process, all members of the work class work together at the construction site to analyze and monitor the construction parameters, comprehensively grasp the conditions of the equipment, and coordinate related issues in a timely manner.

The reporter saw that the intelligent monitoring system was also established at the construction site, and more than 200 automated monitoring points were set up in the railway range. The base of the road was descended from the road under the process of penetrating the shield all the time. After 20 continuous excavations of the day and night, the left and right line shields are completed on time. During the construction process, the high -speed rail driving status is normal, and the total sedimentation of the rail surface is less than the sedimentation limit.

The third phase of Xi'an Metro Line 1 starts from Qindu Station in the west, and the second phase of Line 1 of Line 1 is placed along the Rainbow Second Road and Century Avenue. The total length is 10.61 kilometers. There are 7 stations. After the completion of the line, it is of great significance to accelerate the development of Xi'an Xianyang integrated development, coordinate the construction of the Xi'an metropolitan area, and promote the coordinated development of Xi'an and the surrounding cities.

Up to now, all the main structure of the 7 -seat stations on the entire line is capped; 6 of the seven shields have been dual -line, and one of the remaining one is being excavated. About 36%of the entire rail paving project has been completed. Order construction.

Text/Xi'an Newspaper All Media Reporter Guo Peiran/Li Ming intern Lei Xinyu

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