| 新碧鸡关隧道进口大断面软弱围岩爆破技术 |
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| 引用本文： | 张华,陈龙伟,白玉兵,李刚. 新碧鸡关隧道进口大断面软弱围岩爆破技术[J]. 路基工程, 2011, 0(6): 121-123 |
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| 作者姓名： | 张华 陈龙伟 白玉兵 李刚 |
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| 作者单位： | 昆明理工大学国土资源工程学院, 昆明 650093 |
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| 摘 要： | 昆明铁路枢纽改造工程中的新碧鸡关隧道为大断面软弱围岩隧道，采用分部开挖和光面爆破结合技术，进行了爆破参数、炮眼布置、装药结构优化设计，取得了较好的爆破效果。该方法施工简单、安全经济，对同类隧道工程施工具有一定的借鉴意义。
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| 关 键 词： | 软弱围岩 分部开挖 光面爆破 大断面隧道 |
| 收稿时间： | 2019-11-07 |
Blasting Technology of Large-section Weak Surrounding Rock in the Entrance of New Bijiguan Tunnel |
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| Affiliation: | ZHANG Hua, CI-IEN Long-wei, BAI Yu-bing, L! Gang (Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China) |
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| Abstract: | New Bijiguan Tunnel is the large-section tunnel with weak surrounding rock in Kunming railway terminal reconstruction engineering. The blasting parameters, blast hole layout and charging structure were optimized using step excavation and smooth blasting technology, which achieved good effect. This method is simple, safe and economic, which has a certain reference for the similar tunnel engineering. |
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| Keywords: | weak surrounding rock step excavation smooth blasting large-section tunnel |
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