May 16,
Guangdong Communications Group released a message,
The deep-middle passage of major national projects
The asphalt pavement construction of the whole line was completed,
The project will be ready for traffic in June
Lay a solid foundation.
At present, the Shenzhong Channel is in full swing
Joint commissioning and joint test of electromechanical and communication equipment,
Traffic safety identification marking,
construction of remaining projects such as housing construction,
It is planned to complete the delivery and acceptance in June
And it has the conditions for opening to traffic.
△ Asphalt paving site of Shenzhong Passage
The Shenzhen-Zhongshan Corridor is a world-class cross-sea cluster project integrating "bridges, islands, tunnels and underwater interconnection", with a total length of about 24 kilometers. The whole line surface engineering includes steel bridge deck pavement, concrete bridge deck pavement, submarine tunnel asphalt pavement, etc., with various materials and structural types.
The application of independent research and development of modified asphalt
Make driving more comfortable and safer
It is worth mentioning that
At a depth of about 40 meters under the Lingding Ocean,
The deep-middle channel is the most critical
In the 6.8-kilometer-long undersea tunnel,
The item was used
Self-developed modified asphalt.
△ Asphalt paving site of Shenzhong Passage
According to the relevant person in charge of the project, because the bridge project of the Shenzhen-Zhongshan Channel is located in the marine environment, facing unfavorable climatic conditions such as high temperature, high humidity, high salt and multiple sudden extreme weather, superimposed on factors such as heavy-duty traffic, the steel bridge deck pavement is required to have excellent interlayer bonding, high temperature stability, water damage resistance, fatigue resistance, slip resistance and other comprehensive properties.
Under the premise of not changing the performance of asphalt itself and the paving construction process, the modified asphalt applied this time has excellent water stability, high temperature resistance, spalling resistance, low temperature resistance and fatigue resistance. "The asphalt pavement paved with modified asphalt does not soften at high temperatures, does not crack at low temperatures, and is more comfortable and safer to drive."
△ Asphalt paving site of Shenzhong Passage
Smart construction assistance
Breaking the world record three times
On January 19, 2023, the steel bridge deck pavement construction was completed on the left side of the Zhongshan Bridge in the Shenzhen-Zhongshan Channel, kicking off the prelude to the steel bridge deck pavement construction of the project.
It is reported that the total area of steel bridge deck pavement construction of Shenzhong Passage is 380,000 square meters, equivalent to the area of 53 standard football fields, and it is currently the world's largest epoxy steel bridge deck pavement project.
On January 19, March 12 and November 1, 2023, the project has broken the world record for the construction area of hot-mix epoxy asphalt steel bridge deck pavement in a single day three times.
On November 1, 2023, in the steel bridge deck pavement construction of Lingdingyang Bridge, the single-day pavement area reached 25,772 square meters.
△On November 1, 2023, the steel bridge deck pavement construction of Lingdingyang Bridge
Xiao Nan will show you
Official announcement! Foreign tour groups are exempt from Guangzhou by cruise
When you look up, it's really beautiful!
Correspondents: Yue Jiaojixuan, Yue Lujian, Shen Zhong, Cheng Kai
Text: Xie Ziliang
Image: Shen Zhong, data map
Editor: Zhang Jinxin
Proofreader: Liu Jiaxin
Second trial: Li Xiatong
Final review: Li Lizhi
Producer: Nansha District Rong Media Center
Submission email: [email protected] (This article was originally published by "Guangzhou Nansha Release", without authorization, any media and public account shall not be reproduced and adapted, welcome to share it with friends.) ）