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隧道浅埋段大断面的软弱围岩三台阶施工

The three steps construction of weak surrounding rock in shallow-buried sector large section
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摘要 文章以新建十(堰)至天(水)高速公路安康至汉中试验段A-C05合同段明垭子隧道施工为例,介绍了软弱围岩地质V级大断面公路隧道浅埋段三台阶环形开挖法的施工技术。实践证明:此项技术较好地完成了十天高速明垭子隧道浅埋段施工任务,为今后类似工程提供了有益的借鉴和指导。 Thls article takes Mingyazi Tunnel as an example, which is part of A-C05 of Ankang-Hanzhong test section of the newly expressway Shiyan-Tianshui (Shi-Tian), to introduce the construction technology of three-step and ring- cutting in V large shallow-buried section based on weak surrounding rocks. Practice has proved that: the technology satisfactorily complete the specified shallow-buried section construct task of Mingyazi Tunnel in Shiyan-Tianshui (Shi- Tian) expressway, and provide an useful reference and guidance to projects like this in future.
作者 李映群
出处 《企业技术开发》 2010年第1期75-77,共3页 Technological Development of Enterprise
关键词 高速公路 大断面 三台阶 施工 expressway large section three steps construction
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