G65G65包茂高速渝湘段土坎互通立交工程包茂高速渝湘段土坎互通立交工程隧道开挖支护调整专项施工方案编制：审核：批准：中铁十二局集团有限公司G65包茂高速渝湘段土坎互通立交工程项目经理部2017年3月16日目录1编制依据及编制原则..........................................11.1编制依据..............................................11.2编制原则..............................................12工程概况....................................................12.1工程概述..............................................12.2工程地质与水文地质条件................................52.2.1地质构造........................................52.2.2地质岩性........................................52.2.3气象特征........................................52.2.4水文特征........................................52.2.5不良地质现象....................................63施工方案....................................................63.1施工计划..............................................63.1.1施工机械配置计划...............................63.1.2施工人员配置计划...............................63.1.3施工进度计划...................................73.2洞门段的开挖..........................................73.2.1地表预注浆加固..................................73.2.2抗滑桩施工......................................83.2.3截水天沟施工....................................93.2.3边仰坡开挖.....................................103.3偏压、浅埋洞身段的开挖、支护施工.....................113.3.1开挖施工（三台阶七步开挖法）...................113.3.2CD法转三台阶七步开挖施工方法...................163.3.3光面爆破施工...................................173.3.4钢筋网施工.....................................233.3.5T76L自进式锚杆管棚工艺.........................233.3.6超前小导管施工工艺.............................243.3.7药卷锚杆施工...................................253.3.8钢架施工.......................................273.3.9湿喷混凝土施工工艺.............................283.3.10二次衬砌......................................303.3监控测量.............................................343.3.1地质和初期支护状况观察.........................343.3.2地表下沉量测...................................373.3.3周边收敛量测...................................393.3.4拱顶下沉量测...................................413.3.5具体实施断面的选取及频率.......................424危险因素辨识与分析.........................................444.1危险因素辨识与分析...................................444.2隧道风险评估：.......................................445施工安全保证措施...........................................445.1安全目标.............................................445.2安全管理组织机构.....................................455.2.1建立安全管理组织机构...........................455.2.2明确安全管理职责...............................455.3安全管理制度.........................................455.3.1安全培训制度...................................455.3.2安全技术交底制度...............................465.3.3安全检查制度...................................465.3.4安全会议制度...................................475.3.5安全设施及其管理制度...........................475.3.6安全报告制度...................................475.3.7安全奖惩制度...................................475.3.8安全风险抵押金制度.............................485.3.9安全监督检查制度...............................485.3.10安全事故报告和处...
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