| 白人岩双联拱隧道施工优化技术 |
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| 引用本文： | 李龙.白人岩双联拱隧道施工优化技术[J].国防交通工程与技术,2009,7(2):52-54. |
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| 作者姓名： | 李龙 |
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| 作者单位： | 中铁十三局集团第五工程有限公司,吉林,长春,130031 |
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| 摘 要： | 大广高速公路白人岩双联拱隧道属双连拱大跨度隧道（跨度26m），而且Ⅳ、Ⅴ级软弱围岩占40％左右，其施工难度大。施工中从优化设计方案人手，变多工作面为单工作面，取消侧导洞，减少因工作面多而产生的施工干扰，从而提高工作效率，达到安全、保质、节约的效果。
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| 关 键 词： | 大跨度 双联拱隧道 中导洞 中隔墙 方案优化 |
Optimization of the Construction Techniques for the Bairenyan Duplex-arched Tunnel of the Daguang Expressway |
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| Li Long.Optimization of the Construction Techniques for the Bairenyan Duplex-arched Tunnel of the Daguang Expressway[J].Traffic Engineering and Technology for National Defence,2009,7(2):52-54. |
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| Authors: | Li Long |
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| Institution: | Fifth Engineering Co.Ltd.of the 13th Bureau Group of the Railway Building Corporation of China;Changchun 130031;China |
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| Abstract: | The Bairenyan Duplex-arched Tunnel of the Daguang Expressway is a large-spanned tunnel(span: 26m),about 40% of the surrounding rock of which is made up of type-4 and type-5 soft surrounding rock,and thus the construction of which is very difficult.The optimization of the construction schemes for the tunnel is dealt with in the paper,with great stress placed on the introduction to changing multi-work faces to a single work face,and leaving out side lead shafts so as to reduce the interferance caused to const... |
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| Keywords: | large-spanned duplex-arched tunnel medium lead hole medium separating wall optimization of the construction scheme |
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