On the Shuohuang Railway line outside Huanghua South Station, a 20000 ton heavy-duty coal train is steadily passing by. At a new construction site not far away, the first drill bit of the pile foundation slowly penetrated into the soil layer. The first drill of the Huangda Railway Downward Relief Line Relocation Project officially opened the door to breaking through the blockage of the West Coal East Transportation Channel.

The traffic dilemma at intersections

The Shuohuang Railway, as the second largest channel for the transportation of coal from the west to the east in China, has already achieved normal operation of 10000 ton and 20000 ton heavy-duty trains, and the 400 million ton capacity expansion and renovation project has been fully launched. Previously, due to the limitations of the existing road network layout, all heavy-duty trains connected to the Huangda Line had to cross the main line of the Shuohuang Railway to complete the transfer operation.

Every crossing requires temporary occupation of the main line traffic window, forcing frequent interruptions in station shunting operations and directly slowing down the efficiency of the breakdown and formation of 10000 ton trains. This 4.999 kilometer long relief line is specifically designed to cross the Shuohuang Railway on a reverse curve, completely replacing the level crossing with an overpass bridge.

The project includes 1.932 kilometers of roadbed, 3.067 kilometers of bridges, 7 culverts, and the simultaneous construction of 1 new track with 6 sets of turnouts. After undergoing design changes and land approval in the early stage, the first pile foundation was drilled in September 2026, and 12 pile foundation equipment have been synchronously mobilized. The overall progress is 7 days ahead of schedule.

Efficiency leap of overloaded channels

The special technical working group selected by Huangda Company completed the construction of temporary cofferdams for all construction access platforms before the start of construction, and detailed the drilling sequence for each pile foundation in advance. The project will be completed and opened to traffic by the end of September 2027. At that time, the train traffic of the two railways will be completely separated by overpasses, and there will be no more level crossings that will cause delays. Keywords: railway infrastructure, railway freight transportation

After the renovation is completed, the train travel interval on the main line of the Shuohuang Railway can be compressed to less than 8 minutes, and the shunting efficiency of Huanghua South Station can be directly improved by 40%. The annual coal transportation capacity is increased by over 60 million tons. In the future, heavy-duty trains loaded with coal will smoothly cross the Shuohuang main line along the overpass bridge, and the last connecting point of the West to East coal transportation corridor will become history.Editor/Cheng Liting