Comparison and selection on capacity expansion and speed increasing modification scheme in section of Panzhihua to Yuanmou in ChengduKunming railway line

The author commences on project construction background,combining with the topography alongside Chengdu-Kunming railway line and the distribution of existing line and equipment,gets comprehensive comparison and selection on rebuilding and expanding scheme in section of Panzhihua to Yuanmou in Chengdu-Kunming railway line,confirms the capacity expansion and speed increasing modification scheme of this section reasonably,so as to reach the aim of according with the advanced design idea of new ear railway design.