| 公路大跨度隧道开挖及初期支护施工 |
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| 引用本文： | 张凯.公路大跨度隧道开挖及初期支护施工[J].隧道建设,2007,27(4):65-68. |
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| 作者姓名： | 张凯 |
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| 作者单位： | 广州市地下铁道总公司 |
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| 摘 要： | 结合京珠国道主干线广州东段龙头山隧道施工，重点介绍了隧道开挖采用的双侧壁导坑法、洞口边仰坡的超前支护管棚施作，边仰坡的开挖及其开挖方法，洞身的超前支护与初期支护以及支护工艺和相应的辅助措施等，可供类似工程施工参考。
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| 关 键 词： | 公路大跨度隧道管棚双侧壁导坑法开挖初期支护 |
| 收稿时间： | 2007-01-12 |
| 修稿时间： | 2007-01-122007-04-02 |
A Case Study on Excavation and Primary Reinforcement Construction of Large-spanned Highway Tunnels |
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| ZHANG Kai.A Case Study on Excavation and Primary Reinforcement Construction of Large-spanned Highway Tunnels[J].Tunnel Construction,2007,27(4):65-68. |
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| Authors: | ZHANG Kai |
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| Institution: | Guangzhou Metro Corporation |
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| Abstract: | Taking Longtoushan tunnel on east Guangzhou section of Beijing - Zhuhai national highway as case history, the author presents the cutting of the side/front portal slopes of the tunnel, the installation of the forepoling pipe roof for the portal section, the excavation of the tunnel by means of double side drift construction method and the installation of the advance support and the primary reinforcement, which can provide reference for similar works in the future. |
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| Keywords: | large-spanned highway tunnel forepoling pipe roof double side drift construction method excavation primary reinforcement |
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