地铁暗挖区间隧道施工方案.doc

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武汉地铁二号线

名都~光谷

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

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)