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武汉地铁二号线

名都~光谷区间隧道施工方案

编 制： 复 核： 审 核：

中国中铁武汉2号线25标工程项目经理部

2008年10月30日

目 录

一、编制依据·············································1 二、工程概况·············································1 三、工程地质与水文地质 ··································2 3.1 地质、地貌··········································2 3.2 地层岩性············································2 3.3 地质构造及地震烈度··································3 3.4 水文地质条件········································3 四、施工条件·············································4 4.1 既有道路············································4

4.2 水电设施············································4

4.3 通讯条件············································4 4.4 通风条件············································5 4.5 供风系统············································5 五、施工准备·············································5 5.1 技术准备············································5 5.2 施工机械设备配备····································5 六、横通道转正洞交叉口施工技术措施·······················6 七、区间隧道施工方案·····································7 7.1 台阶法开挖施工方法··································7 7.2 CRD法开挖施工方法··································10 7.3 CD法开挖施工方法···································11 7.4 双侧壁导坑法开挖施工方法···························11 7.5 开挖施工方法的转换·································13 八、区间隧道超前支护····································14 8.1 超前小导管施工工艺·································14 8.2 超前药卷锚杆·······································15 8.3 初支施工要点技术措施·······························16

九、区间正线防水施工····································16 9.1 一般区间工程防水措施·······························16 9.2 钢筋混凝土结构自防水·······························17 9.3 暗挖隧道的复合防水施工·····························17 十、区间正线二衬施工···········`·······················20 10.1 二衬施工方案······································20 10.2 区间隧道变形缝····································21 10.3 暗挖区间施工缝····································22 十一、隧道二衬背后的防水措施····························24 11.1 变形缝防水施工····································24 11.2 施工缝防水施工····································24 11.3 后浇带的防水施工··································24 十二、区间隧道施工运输组织······························25 十三、区间隧道内施工动力设置····························25 13.1 供电和照明········································25 13.2 供风和供水········································26 十四、区间隧道通风布置··································27 十五、区间隧道排水······································27 十六、区间隧道监测施工··································28 十七、地表沉降控制标准及措施····························28 十八、安全及文明施工保证措施····························29 十九、环境保护措施······································30 二十、职业健康··········································30