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针对混凝土岔枕道岔立螺栓出现锈死、折断、松动现象,介绍利用维修天窗在线上对失效立螺栓的改锚技术。
Aiming at the phenomenon that the bolts of turnout of concrete sleeper turnout appear rusting, breaking and loosening, the paper introduces the technology of changing anchors of invalid bolt by using maintenance skylight.