12 March 2023, 3 p.m.，Guangdong Communications Group announced that，Successful completion of steel deck pavement of Zhongshan Bridge of Shenzhen-Medium Passage, a major national project。On that day, the pavement area was up to 22600 square meters.，Once again, the world record of hot-mixed epoxy asphalt steel deck pavement set by the project was refreshed.。

  Vogler Paver Double Paving and Hummer Oscillating Roller Hand in Hand to Help Steel Deck Paving

The total amount of paving has exceeded 150,000 square meters.

Deep and intermediate channels are set“Bridge、Island、Tunnel、Underwater communication”A super-large cross-sea cluster project.，The total length of the passage is about 24 kilometers.。

Poly Changda Shenzhen-Medium PassageSThe Project Department of Bid No.15 is responsible for the pavement construction of the whole line.，The key points include the steel deck pavement of two heavy traffic long-span main bridges, Lingdingyang Bridge and Zhongshan Bridge, and the approach bridges in the east-west flood discharge area.，Its project scale is about 380000 square meters.，Equivalent to 53 standard football fields，It is the world's largest steel bridge deck pavement project of the same type.。

January 19，Steel deck pavement of deep and medium passage，On the same day, the construction of the left steel deck pavement of Zhongshan Bridge was successfully completed.，The pavement area in a single day reaches 22300 square meters.，Create a new world record for hot-mix epoxy asphalt pavement on steel bridge deck。

Poly Changda Shenzhen-Medium PassageSTang Lingwei, the project manager of Bid 15, introduced.，With the completion of the steel deck pavement of Zhongshan Bridge,，The total construction area has exceeded 150000 square meters.，About 40% of total steel deck paving%。

Intelligent Equipment Helps Improve Quality and Efficiency of Pavement Construction

Zhongshan Bridge is located in the open sea.，The weather is complex and changeable，Short effective construction time，The project team works closely with the observatory.，Hourly forecast by meteorological station before and during construction，Dynamically grasp the trend of weather change，Ensure the smooth completion of construction。

The day of March 12，The project is put into the mixing station、Paver、Road Roller、54 transport vehicles（Set）,There are more than 240 workers and managers on site.，Guaranteed production、Transportation、Spreading、Good connection of rolling and other processes and fine management of the whole process。

“In addition to the large volume of construction,，The construction of asphalt layer of steel bridge deck shall withstand the high temperature in summer without deformation.，But also has good follow-up property with the lower bearing steel plate，At the same time, it is facing the high temperature in the open sea.、Wet and rainy and other unfavorable construction environment。”Tang Lingwei introduced，The construction team developed intelligent spraying for this purpose.、Intelligent painting and other 8 sets of new equipment，Set up a dynamic video、Beidou positioning is an integrated information platform.，Realize the digitalization of all links、Intelligent，Ensure high quality and efficiency of construction，Completed a month ahead of schedule.。

SMao Nongping, Chief Engineer of Bid 15 Project Department, introduced：“In order to ensure the durability of steel bridge deck pavement and reduce early diseases,，During the construction, we strictly prevent oil and control water.，Before construction, carefully check every possible pollution source and dispose of it in time.。”

  Hummer oscillating compaction technology avoids the resonance effect on the bridge deck while achieving efficient compaction.

Steady progress towards the target of opening to traffic in 2024

At present，The construction of Shenzhen-Medium Passage Project is advancing towards the goal of completion and opening to traffic in 2024.，The pavement project has completed the first stage of steel deck pavement construction.，Next, the ordinary asphalt concrete pavement of concrete bridge deck will be implemented.，Lingdingyang Bridge is carrying out steel box girder hoisting construction，The submarine immersed tube tunnel has completed the installation of 31 tube sections.，The last pipe section is in progress.（Final joint included）Prefabrication，East、Steadily advancing the construction of the West Artificial Island。

Articles and pictures reprinted：Guangzhou Daily、Poly grows up on the official account

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