隧道与竖井对接应用技术
Connection of Tunnel with Vertical Shaft
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- DOI:
- 作者:
- 李胜新, 刘广仁, 李泽苑
LI Sheng-xin
- 作者单位:
- 中国石油天然气管道局第四工程分公司, 河北廊坊 065000
Fourth Engineering Company of China Petroleum Pipeline Bureau,Langfang 065000,China
- 关键词:
- 隧道;竖井;地下连续墙;冷冻封堵;对接施工
tunnel;vertical shaft;underground continuous diaphragm wall;freeze connection construction
- 摘要:
- 武汉一条穿越长江隧道在建成后需要与新建竖井进行对接,以满足新增建的输油气管道通道的要求。在粉砂层、高水压、强渗透地质条件下,采用连续墙竖井施工、隧道切断、冷冻封堵等施工工艺和措施,顺利完成了竖井与隧道的对接。文章介绍了该工程的施工工艺流程、各工序的关键控制点和实施效果。实践证明,该方法具有时间短、速度快、安全高效等优点,也可用于隧道的修复工程。
A tunnel crossing the Changjiang River in Wuhan City needs connecting with a newly built vertical shaft to meet the path requirement of a newly constructed oil-gas pipeline.In the geological conditions of silty sand stratum,high water pressure and strong permeability,the construction processes and measures such as continuous diaphragm wall,tunnel cutting off and freeze blocking are used and the smooth connection between the tunnel and the vertical shaft is realized.The construction process flow,key control points of working procedures and implementation effects are described.The engineering practice proves that this method has the advantages of short construction period,fast construction speed and high safety and efficiency,and it also can be used for tunnel repair engineering.2011,2(2): 40-41,5 收稿日期：2010-5-18分类号：U455作者简介：李胜新(1957-),男,上海人,高级工程师,2004年毕业于武汉理工大学机电一体化专业,硕士,现从事管道工程盾构施工管理工作.