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矿区采煤区段地面铁路受地下采掘的影响发生下沉。文章介绍在矿区专用线维修中起道、拨道作业方法和注意事项
Subsidence caused by the underground excavation of the ground railway in the coal mining section of the mining area. This article describes the special line maintenance in the mining area from the start, dialing methods and precautions