1.2.1左线ZDK0+645.801～ZDK0+726.815，计81.014m 的隧道施工，右线YDK0+645.8～YDK0+728.118 ，计82.318m 隧道施工。
1.2.2该段里程地表加固:施喷桩、袖阀管、摆喷桩等施工管理。
1.2.3工程数量见工程数量表（略）。
1.2.4本施工组织设计的重点是实施B 断面，里程为YDK0+729.418～ 694.365。

1.3 .工程地质条件
1.3.1.隧道地质概况
隧道地处剥蚀丘陵地带，植被发育，自然坡度30 度，表层为褐黄粉质色粘土，硬塑，厚2～16m,下覆石炭系上中统壶天群灰岩、白云质灰岩，灰色，灰白色，弱风化，产状142°/61°，地下水发育。其中IDK132+920～IDK133+135 为浅埋段，土层较厚，岩溶较发育。

目 录
第一章 工程概况 1
1.1 编制依据......................................................................................................................1
1.2 工程范围及工程数量..................................................................................................1
1.3 工程地质条件..............................................................................................................1
1.4 隧道设计......................................................................................................................3
1.5节 隧道施工环境.........................................................................................................3
第二章 现场的施工现状 4
第三章 施工总体安排及施工方案 4
3.1 隧道进洞方法与开挖支护..........................................................................................4
3.2 止水帷幕施工............................................................................................................16
3.3 B断面端头加固袖阀管施.......................................................................................17
3.4 地表管线加固施工....................................................................................................17
3.5 对元岗大桥桥基临时加固的预备措施....................................................................17
3.6 管棚施工....................................................................................................................19
3.7 爆破施工....................................................................................................................20
3.8 A、B断面隧道施工................................................................................................25
第四章 施工工艺 36
4.1 喷射混凝土................................................................................................................36
4.2钢筋网安设.................................................................................................................37
4.3 格栅拱架加工与架立................................................................................................37
4.4 超前小导管、注浆小导管和锁脚锚管施工............................................................38
4.5 防水层施工................................................................................................................42
4.6 仰拱施工....................................................................................................................43
4.7 二次衬砌施工............................................................................................................44
4.8 衬砌背后注浆............................................................................................................45
4.9 进洞3m前的井点降水.............................................................................................46
第五章 工程测量与监控量测 48
5.1 施工测量....................................................................................................................48
5.2 监控量测....................................................................................................................49
第六章 工期、进度及劳动力、机械的安排 54
6.1 A、B断面施工总体安排........................................................................................51
6.2 工期计算....................................................................................................................51
6.3 时标网络图及施工总体进度横道图........................................................................51
6.4 机械、设备进场表（表6-3）..................................................................................53
第七章 应急准备及处理 56
7.1 洞内塌方....................................................................................................................55
7.2 洞内穿水....................................................................................................................55
7.3 出现流砂....................................................................................................................55
7.4 基坑上鼓....................................................................................................................56
7.5 路面塌洞....................................................................................................................56
第八章 施工注意事项 56
第九章 保证措施 58
9.1 质量保证措施............................................................................................................58
9.2 安全保证措施............................................................................................................59
9.3 进度保证措施............................................................................................................60
9.4 文明施工保证措施....................................................................................................60
总 结 62