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1改建铁路重庆至怀化线涪陵至梅江段增建第二线四标工程YDK242+000～YDK294+425段邻近营业线施工专项方案编制：审核：审定：审批：中铁二十局集团有限公司涪秀二线铁路工程项目经理部二O一五年十一月2目录一、编制依据及编制范围........................................................................................................................51.1编制依据................................................................................................................................................51.2编制范围................................................................................................................................................6二、工程概况及主要工程数量.................................................................................................................72.1工程概况................................................................................................................................................72.1.1工程简述........................................................................................................................................72.1.2增建二线主要技术指标..............................................................................................................132.1.3工程特点......................................................................................................................................132.1.4地质及自然特征..........................................................................................................................142.2主要工程内容......................................................................................................................................15三、总体施工组织.................................................................................................................................163.1施工组织及负责人..............................................................................................................................163.2邻近营业线施工关键岗位的任务与职责...........................................................................................173.3现场调查..............................................................................................................................................183.4签订安全协议......................................................................................................................................193.5现场信号配备......................................................................................................................................193.6施工便道准备......................................................................................................................................193.7混凝土供应..........................................................................................................................................203.8施工用电..............................................................................................................................................203.9施工工期计划......................................................................................................................................203.10营业线施工内容...............................................................................................................................203.10.1路基工程...........