Daqin Railway, an artery sending coal from key production areas to ports in northern China, begains a 30-day spring maintenance on April 1, state media CCTV reported, citing the China Railway Taiyuan Group.

The maintenance is aimed at enhancing its transport efficiency to guarantee coal supply for the upcoming peak summer period.

Daqin line, delivering more than 400 million tonnes of coal annually, is responsible for ensuring coal supply for more than 300 large power plants and over 6,000 industrial enterprises across 26 provinces in China. 

The maintenance is scheduled to go for 3 hours each day from 9:00 to 12:00 a.m. There will be 13,000 people working simultaneously on the 653-km line, with the help of large construction machineries provided by 10 regional branches under China Railway.

This year's spring intensive maintenance plans to replace 214.13 kilometers of rails in sections, 124,000 sleepers in sections and 77 turnout units. The length of the lines that are needed to be fixed and polished both exceeds 1,000 kilometers. The maintenance workload of power supply systems, signaling equipment and communication cables also surpasses that in previous years.

To ensure the maintenance could be concluded on time, 57 units of 14 types of large construction machineries, as well as 218 small road maintenance machines, will be used, helping conduct thorough inspections and extensive upgrading of the Daqin railway.

Previous maintenances typically drove down daily shipments to about 1 million tonnes per day, almost the same with the average volume of 1.08 million tonnes in the year to date. If the mainteance is carried on in a similar way, the overall supply could be less impacted. 

(Writing by yan.sun  Editing by Alex Guo)
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