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近年来,兖州矿业(集团)公司北宿煤矿在山东省煤炭科学研究所的协助下,对井下主要运输线路逐步实行了接头无缝焊接,消除或减少了钢轨接头。实践证明,窄轨线路无缝焊接可有效改善轨道运输条件,优越性十分明显。窄轨铁路是矿井轨道运输的主要装备,轨道接头是检验轨道质量的重要项
In recent years, with the assistance of Shandong Institute of Coal Science, the North Mine of Yanzhou Mining (Group) Co., Ltd. gradually implemented joint seamless welding on the main underground transportation routes to eliminate or reduce the rail joints. Practice has proved that seamless welding narrow-gauge lines can effectively improve the rail transport conditions, superiority is very obvious. Narrow-gauge railway is the main equipment of mine track transportation, rail joints is to check the quality of the track an important item