目录一、编制总则........................................................4二、工程概况........................................................42.1工程简介.....................................................42.2工程地质及水文地质...........................................52.2.1工程地质...................................................52.2.2水文地质...................................................72.3周边环境.....................................................7三、风险源分析及处置原则............................................83.1风险分级原则.................................................83.1.1一般规定...................................................83.1.2自身风险工程...............................................83.1.3环境风险工程..............................................103.2自身风险工程分析与评估......................................133.2.1一般规定..................................................133.2.2明（盖）挖法工程分析与评估................................133.2.3矿山法工程................................................153.2.4盾构法施工................................................173.3环境风险工程影响分析与评估..................................183.3.1一般规定..................................................183.3.2环境影响风险分析与评估....................................183.4施工措施风险等级原则........................................203.5各级风险工程处置原则........................................223.5.1一级风险源................................................223.5.2二级风险源................................................223.5.3三级风险源................................................223.5.4四级风险源................................................223.5.5风险工程清单..............................................22四、柳条湖站风险源专项分析.........................................2214.1车站风险工程介绍............................................234.2自身风险工程分析............................................264.2.1车站基坑及附属施工........................................264.3环境风险工程分析............................................294.3.1车站主体结构基坑临近桥桩..................................294.3.2车站主体及出入口临近高层建筑及桥桩环境风险................324.3.3主体邻近及出入口暗挖段下穿主要管线........................36五、松花江街站至柳条湖站暗挖区间风险源专项分析.....................395.1暗挖区间风险源工程介绍......................................395.2自身风险工程分析............................................445.2.1区间标准断面及临近渡线段大断面矿山法施工..................445.2.2区间施工竖井倒挂井壁法施工................................475.3环境风险工程分析............................................505.3.1区间隧道侧穿东一环高架桥..................................505.3.2区间侧穿建筑物............................................535.3.3区间下穿重要管线..........................................63六、柳条湖站至北大营街站盾构区间风险源专项分析.....................666.1盾构区间风险工程简介........................................666.2自身风险工程分析............................................686.2.1柳条湖站～北大营街站区间..................................686.2.2柳北区间1号联络通道兼泵站和2号联络通道..................706.3环境风险工程分析............................................726.3.1东一环高架桥.......................................
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