On the morning of April 23
With the pear orchard-nascent interval
The last pair of rail joints is welded
Phase IV of Shenzhen Metro Line 3
Successfully complete the seamless line welding task
6 days ahead of schedule to achieve the key node goal of "long rail pass" on the whole line
It is the follow-up dentsu and joint debugging and joint test
Key nodes such as hot slip provide good conditions
For the line to open trial operation on schedule
A solid foundation has been laid
The main line of the fourth phase of the track project of Line 3 is a prefabricated ballastless track structure and seamless line design, and according to the requirements of the EIA and the line conditions, a variety of vibration reduction track bed forms such as general, medium, high and special vibration reduction prefabricated slab track bed are set up respectively.
Since the start of construction in August 2023, the builders have continuously improved the construction plan, optimized the construction organization and resource allocation, overcome many difficulties such as limited construction sites, lagging transfer of some track areas, and multi-disciplinary cross construction. Advanced equipment and innovative technologies such as track area scheduling and safety management system effectively ensure construction safety, quality and track laying progress.
01
In terms of design innovation, for the first time in the special vibration reduction section, the same level of vibration reduction and re-classification design was adopted, which alleviated the problems of wheel and rail wear, rail corrugation and increased noise in the vehicle that may be caused by vibration reduction measures under the premise of meeting the requirements of the EIA.
02
At the same time, some sections are equipped with a floating slab track bed monitoring system, which realizes the functions of continuous monitoring, trend prediction, problem early warning, report generation and other functions of the track bed, and effectively improves the operation safety and maintenance efficiency of the floating slab track bed.
The fourth phase of the project of Line 3 starts from the existing Shuanglong Station and ends at Pingdi Liulian Station, including 7 stations, 7 sections, 1 field and 1 line, with a total length of about 9.28km on the main line, of which the elevated section is about 1.6km long, the underground section is about 7.31km long, the maximum design speed of the line is 100km/h, and 6 B-type cars are used.
The fourth phase of Line 3 as
Strengthen the connection between the eastern group and the core area of Shenzhen
Important urban rail transit lines
to support the development of Shenzhen International Low-carbon City
Effectively alleviate the traffic pressure in the Longgang Pingdi area
Further improve the operation function of the existing Line 3
will play an important role
Let's look forward to it!Source: Shenzhen Metro