(1)危及行车安全的突发性灾害的紧急抢修;󠄐󠄹󠅀󠄪󠄡󠄨󠄞󠄢󠄡󠄧󠄞󠄡󠄦󠄤󠄞󠄡󠄩󠄠󠄬󠅒󠅢󠄟󠄮󠄐󠅅󠄹󠄴󠄪󠄾󠅟󠅤󠄐󠄼󠅟󠅗󠅙󠅞󠄬󠅒󠅢󠄟󠄮󠇘󠆭󠆘󠇙󠆝󠅵󠇗󠆭󠆁󠄐󠇗󠅹󠅸󠇖󠆍󠅳󠇖󠅹󠅰󠇖󠆌󠅹󠄬󠅒󠅢󠄟󠄮
(2)钢轨、辙叉或夹板折断后的紧急处理;󠄐󠄹󠅀󠄪󠄡󠄨󠄞󠄢󠄡󠄧󠄞󠄡󠄦󠄤󠄞󠄡󠄩󠄠󠄬󠅒󠅢󠄟󠄮󠄐󠅅󠄹󠄴󠄪󠄾󠅟󠅤󠄐󠄼󠅟󠅗󠅙󠅞󠄬󠅒󠅢󠄟󠄮󠇘󠆭󠆘󠇙󠆝󠅵󠇗󠆭󠆁󠄐󠇗󠅹󠅸󠇖󠆍󠅳󠇖󠅹󠅰󠇖󠆌󠅹󠄬󠅒󠅢󠄟󠄮
(3)线路胀轨的紧急处理;
(4)更换重伤钢轨、辙叉或联结零件;󠄐󠄹󠅀󠄪󠄡󠄨󠄞󠄢󠄡󠄧󠄞󠄡󠄦󠄤󠄞󠄡󠄩󠄠󠄬󠅒󠅢󠄟󠄮󠄐󠅅󠄹󠄴󠄪󠄾󠅟󠅤󠄐󠄼󠅟󠅗󠅙󠅞󠄬󠅒󠅢󠄟󠄮󠇘󠆭󠆘󠇙󠆝󠅵󠇗󠆭󠆁󠄐󠇗󠅹󠅸󠇖󠆍󠅳󠇖󠅹󠅰󠇖󠆌󠅹󠄬󠅒󠅢󠄟󠄮
(5)轨道几何尺寸超过临时补修标准的病害整修;󠄐󠄹󠅀󠄪󠄡󠄨󠄞󠄢󠄡󠄧󠄞󠄡󠄦󠄤󠄞󠄡󠄩󠄠󠄬󠅒󠅢󠄟󠄮󠄐󠅅󠄹󠄴󠄪󠄾󠅟󠅤󠄐󠄼󠅟󠅗󠅙󠅞󠄬󠅒󠅢󠄟󠄮󠇘󠆭󠆘󠇙󠆝󠅵󠇗󠆭󠆁󠄐󠇗󠅹󠅸󠇖󠆍󠅳󠇖󠅹󠅰󠇖󠆌󠅹󠄬󠅒󠅢󠄟󠄮
(6)其他影响行车安全的故障处理。󠄐󠄹󠅀󠄪󠄡󠄨󠄞󠄢󠄡󠄧󠄞󠄡󠄦󠄤󠄞󠄡󠄩󠄠󠄬󠅒󠅢󠄟󠄮󠄐󠅅󠄹󠄴󠄪󠄾󠅟󠅤󠄐󠄼󠅟󠅗󠅙󠅞󠄬󠅒󠅢󠄟󠄮󠇘󠆭󠆘󠇙󠆝󠅵󠇗󠆭󠆁󠄐󠇗󠅹󠅸󠇖󠆍󠅳󠇖󠅹󠅰󠇖󠆌󠅹󠄬󠅒󠅢󠄟󠄮