| 浅埋暗挖法在下穿公路连拱隧道施工中的应用 |
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| 引用本文： | 盛春革.浅埋暗挖法在下穿公路连拱隧道施工中的应用[J].铁道建筑技术,2009(3). |
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| 作者姓名： | 盛春革 |
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| 作者单位： | 中铁十四局集团第二工程有限公司,山东泰安,271000 |
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| 摘 要： | 采用浅埋暗挖法在既有公路下修建高速公路连拱隧道,隧道施工对围岩造成多次扰动,从而引起地层发生位移和沉降,较大的地层位移和沉降将影响既有公路的正常运营,同时上部汽车荷载对隧道施工安全隐患较大,因此,下穿公路连拱隧道浅埋暗挖施工面临许多技术难点,必须采取特殊的超前支护和施工工艺。在土江冲隧道施工中综合应用双层管棚超前支护、三导洞法开挖、信息化施工等技术,使隧道成功下穿319国道。
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| 关 键 词： | 浅埋暗挖 既有公路 连拱隧道 隧道施工 |
The Application of Sallow Buried Tunneling Method in the Construction of Continuous Arch Tunnel Undergoing Railway |
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| SHENG Chunge.The Application of Sallow Buried Tunneling Method in the Construction of Continuous Arch Tunnel Undergoing Railway[J].Railway Construction Technology,2009(3). |
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| Authors: | SHENG Chunge |
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| Institution: | Sheng Chunge(Second Engineering Co.Ltd.; China Railway 14th Bureau Group; Tai an 271000; China); |
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| Abstract: | Adopting the sallow buried tunneling method in the construction of high-speed railway continuous arch tunnel undergoing existing railway,can disturb the wall rock for several times.It can trigger displacement and settlement in the stratum,and big stratum displacement and settlement will influence the normal operation of existing roads,and cars load above can cause hidden dangers in the tunnel construction.Therefore,there are many technical difficulties in adopting the sallow buried tunneling method in conti... |
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| Keywords: | sallow buried tunneling method current highway continuous arch tunnel tunnel construction |
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