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                            繁體版 English

                            朔黄铁路升级24组主进路道岔提升安全储备

                            作者: 任振华 张瑞 来源: 朔黄铁路 发布时间: 2022-06-17 字号:【

                            6月12日,国家能源集团朔黄铁路圆满完成集团铁路运输网枢纽站点神池南站〗主进路24组重载道岔更换工作,整体养护维修工作量较既有道岔降低40%以上,为防洪度汛期间能源保】供工作提供可靠设备保证。

                            图为新型重载道岔更换施工现场

                            神池︾南站一站连四线,上游连接包神、新朔铁路,下游连接朔黄、大秦铁路,是我国◤第二条西煤东运大通道上的“咽喉”车站,日均输送煤炭运输任务百万█吨以上。车站海拔1533米,无霜期仅有90-130天,恶劣气候导致线路冻害、翻浆冒泥等季ㄨ节性病害突出,加上重载列←车高位运行,机车车辆通〇过重力大,道岔轨件疲劳老化较快,更换频繁,影响→运输效率。为改善列车运行主要进路线路质量,朔黄铁路通过更换承重强度和结构稳定性更高的“研线1116”重载道岔,提高道岔稳定性和辙叉耐磨性。新型道岔采用相离单圆曲线线型,在基本轨和尖◥轨密贴段将基本轨工作边一侧刨切5mm以增加尖轨厚度,辙叉采用心轨加宽技术,解决了重载道岔心轨伤损㊣、尖轨侧磨、垫板螺栓松动等难题。

                            据了解,重载道岔的更换,将有效改善道床弹性,提升道岔对重载运输的适应性和稳定性,道岔直、曲尖轨、辙叉预期使用寿命分别为通过总重4亿吨、1亿吨和3亿吨以上,大幅降低维修对两万吨、万吨重载列车主进路行驶的影响。


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