下穿燃气管线安全专项施工方案目 录1.编制依据..............................................12.工程概况..............................................13.工程地质及水文地质....................................23.1 工程地质.........................................23.2 水文地质.........................................34.风险因素分析..........................................35.施工重难点分析........................................45.1 施工重点.........................................45.2 施工难点及对策...................................46.施工方案和主要施工工艺................................56.1 施工准备.........................................56.2 施工安排.........................................56.3 施工工艺.........................................66.3.1 施工方法.....................................66.3.2 施工工艺.....................................86.3.3 技术措施及控制要点...........................96.3.4 主要质量控制标准............................106.4 安全保证措施及施工注意事项......................126.4.1 开挖及喷锚作业..............................126.4.2 施工现场....................................147.工程环境保护措施.....................................147.1 防水排水........................................147.2 冲刷与淤积......................................157.3 废料、 废方的处理...............................157.4 防止和减轻水、 大气受污染.......................157.5 现有公用设施的保护..............................168.监测实施方案.........................................168.1 监测目的及意义..................................168.1 监测项目及实施方法..............................178.2.1 监测项目及频率..............................178.2.2 主要监测项目实施方法........................178.3 信息化施工管理程序..............................218.3.1 监测组织机构................................218.3.2 监测数量分析................................218.3.3 信息反馈....................................228.4 监控量测保证措施........................
