| 深埋高地应力引水隧洞应力解除爆破施工技术应用 |
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| 引用本文： | 李臣智.深埋高地应力引水隧洞应力解除爆破施工技术应用[J].铁道建筑技术,2012(11):9-12. |
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| 作者姓名： | 李臣智 |
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| 作者单位： | 中国铁建十三局集团有限公司,天津,300308 |
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| 摘 要： | 锦屏二级水电站为超埋深大洞径长隧洞特大型地下水电工程,引水隧洞开挖施工过程中高地应力造成岩爆是施工的重难点之一。在实际施工过程中,采取多种措施相结合的方式进行岩爆的预测、预报及防治。介绍了深孔应力解除爆破施工技术在本工程3号、4号引水隧洞强岩爆段应用情况。
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| 关 键 词： | 引水隧洞 岩爆 应力解除 喷锚支护 爆破方法 |
Blasting Technology Application in Stress Relief of Deep High Stress Diversion Tunnel |
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| Li Chenzhi.Blasting Technology Application in Stress Relief of Deep High Stress Diversion Tunnel[J].Railway Construction Technology,2012(11):9-12. |
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| Authors: | Li Chenzhi |
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| Institution: | Li Chenzhi (China Railway 13th Bureau Group Co. Ltd. , Tianjin 300308, China) |
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| Abstract: | JinPing Hydropower Station II is classified as super deep buried, big diameter and long tunnel underground hy- dropower station. Rock burst caused by high stress in diversion tunnel excavation is one of the key difficulties. In the actual construction process, a variety of measures are adopted for rock burst forecast, prediction and prevention, the Application of blasting construction technology for deep hole stress relief in strong rock burst period of diversion tunnel in the project are introduced. |
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| Keywords: | diversion tunnel rock burst stress relief anchor-plate retaining blast technolgoy |
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