On August 3rd, the track laying work of rail transit Line 3 made great progress, and the rubber spring floating plate ballast from Normal College Station to Dongfeng Town Station on Line 3 passed acceptance smoothly. The use of new rubber spring floating plate ballast technology, to reduce traffic noise effect.

In the acceptance site of Normal College Station to Dongfeng Town Station of rail transit Line 3, the acceptance group unanimously agreed that the construction preparation of rubber spring floating plate ballast bed was full, the quality assurance measures were complete, the quality of the first project was excellent, in line with the requirements of design and construction specifications, the first standard was of guiding significance, agreed to pass the acceptance, and the subsequent large-scale construction could be carried out.

It is understood that compared with the traditional road bed, the adoption of rubber spring floating plate road bed can effectively reduce the Z vibration level (HJ453-2018) VLZmax value of the tunnel wall when the train passes through 15 dB, reduce the secondary radiation noise of more than 5 dB. In addition, the rubber spring floating plate ballast bed has the advantages of good economy, strong safety, excellent structural practicability, convenient installation, convenient maintenance and so on. At present, the single line length of rubber spring floating plate ballast bed near Guizhou Normal College Station reaches 250 meters. In the next step, the project department will strictly control the construction quality in accordance with the standards of the first project, standardize the construction and standardize the operation, make every effort to complete the task of rail laying, and strive to cast high-quality Guiyang subway project.