Recently, the Guangzhou-Foshan Ring Line (hereinafter referred to as the "Guangzhou-Foshan South Ring Road") Foshan West Railway Station (not included) to Guangzhou South Railway Station, Guangzhou South Railway Station (not included) to Wanghong Station between Foshan to Dongguan Intercity Rail Transit (hereinafter referred to as "Foshan to Dongguan Intercity") (not included) successfully completed the step-by-step speed test, CRH2A-2010 comprehensive inspection train ran out of the highest test target speed value of 220 kilometers per hour, which is the first major project node goal achieved since the dynamic acceptance of Guangzhou-Foshan South Ring Road and Foguan Intercity.
It is understood that the Guangzhou-Foshan South Ring Road starts from the intercity Foshan West Station, passes through Zhangcha Station, Shunde North Station, Beijiao West Station, Chencun Station, and ends at Guangzhou South Railway Station Intercity Panyu Station. The total length of the line is 35 km. The Foguan Intercity Line starts from the intercity Panyu Station, and adds 5 new stations: Guangzhou Chimelong Station, Donghuan Station, Guanqiao North Station, Guangzhou Lianhuashan Station and Macong Station, and ends at Dongguan West Station. The total length of the line is 37 km. 。
According to Guangzhou Metro Group, the step-by-step speed test refers to the test of gradually increasing the test speed on the first road of the comprehensive inspection train according to the requirements of the joint debugging and joint test test plan, until it runs at the highest test speed according to the standard of 110% of the design speed of the production line. During the test, according to the design and relevant technical standards, the system function, dynamic performance and system status are tested within the specified speed range, the speed of the line is judged, and the stability of the power supply system is judged, and the vehicle system and track system are comprehensively tested to ensure the safety of driving. Guangzhou-Foshan South Ring Road and Fodongguan intercity design speed is 200 kilometers per hour. According to the standard, the maximum test speed of the step-by-step speed test should reach 220 kmh.
In the gradual speed test of the two intercity lines, the comprehensive inspection train carried out a round-trip test of five speed grades from Foshan West to Dongguan West. The speed of the train is gradually increased from 160 kmh to 200 kmh, and finally reaches 220 kmh, reaching 110% of the engineering design speed, which verifies the safety margin of the project. According to the on-site inspection data, during the trial operation of the train, the wheel-rail relationship, pantograph-network relationship, vehicle stability, track quality index, catenary smoothness and other indicators have reached the industry standard.
Guangzhou Metro said that it will make every effort to promote the operation of the "four lines" from Foshan to Zhaoqiao, Wanhui, Guangzhou-Foshan South Ring Road, and Foshan to Dongguan, accelerate the formation of Foshan's one-hour commuting circle and the Greater Bay Area metropolitan area, and help the construction of the Greater Bay Area.
Text: Guangzhou** New Flower City Reporter: Li Tianyan Correspondent: Tang Guoguo, Liu Yuanyang.
Figure: Guangzhou**New Flower City Reporter: Luo Changwei Correspondent: Li Dudu.
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