| 天生桥一级水电站引水隧洞群开挖施工 |
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| 引用本文： | 戴波,吴旭.天生桥一级水电站引水隧洞群开挖施工[J].四川水力发电,2000,19(3):3-7. |
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| 作者姓名： | 戴波 吴旭 |
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| 作者单位： | 中国水利水电第七工程局,四川,郫县,611730 |
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| 摘 要： | 介绍了天生桥一级水电站引水隧洞群开挖的施工程序及施工方法，阐述了在洞轴线间距小（洞与洞之间的净间距只有１２．４ｍ），上覆岩层薄、岩性软弱、结构面发育的地质条件下，严格按“新奥法”施工和洞群采用间隔开挖方法，从而获得隧洞施工安全顺利进行的经验。
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| 关 键 词： | 引水隧洞群 新奥法 施工程序 施工方法 |
| 修稿时间： | 2000-06-27 |
Excavation of Headrace Tunnels at Tianshengqiao I Hydropower Station |
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| DAI Bo,WU Xu.Excavation of Headrace Tunnels at Tianshengqiao I Hydropower Station[J].Sichuan Water Power,2000,19(3):3-7. |
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| Authors: | DAI Bo WU Xu |
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| Abstract: | Construction procedure and method during excavation of headrace tunnels at Tianshengqiao I Hydropower Station are presented . Under the conditions of small distance between tunnel axis(net distance between tunnelsis 12.4m) , thin overlying strata , weak rock and developed discontinuity , new Austrian tunneling method (NATM) is strictly applied and alternate bay excavation is used for tunnels to ensure safety in tunnel construction . |
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| Keywords: | Tianshengquao I Hydropower Station headrace tunnel excavations safety |
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