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道岔施工专项方案目录1、编制依据___________________________________________________12、概述_______________________________________________________12.1、工程概况_________________________________________________12.2、工程特点及难点___________________________________________22.3、总体施工方案及施工组织___________________________________22.4、总体施工方案_____________________________________________23、施工方案及技术措施_________________________________________53.1、前期工作_________________________________________________53.2、封锁前准备_______________________________________________83.3、封锁施工方案、措施______________________________________114、主要技术标准及施工工艺____________________________________234.1、道岔预铺________________________________________________234.2、正位铺设道岔____________________________________________234.3、道岔拨移________________________________________________274.4、无缝线路