首页> 外国专利> With the doorway branching confluence road widening section null shielded tunnelling machine of the tunnel which was constructed excavation manner of the tunnel and construction manner of the doorway branching confluence road widening section of the tunnel which uses

With the doorway branching confluence road widening section null shielded tunnelling machine of the tunnel which was constructed excavation manner of the tunnel and construction manner of the doorway branching confluence road widening section of the tunnel which uses

机译：利用该隧道的开挖方式和使用该隧道的隧道分岔合流路拓宽段的施工方法，利用该隧道的门道岔合流路拓宽段。

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摘要

PPROBLEM TO BE SOLVED: To provide a construction method of a tunnel entrance branch/confluent width expanding part, capable of securing maintenance of a social environment and a surrounding environment by restraining excavation surplus soil to a necessary minimum, capable of performing safety construction by minimizing influence on the surrounding ground, and capable of simplifying joining work by shortening a joining distance between a main track tunnel and an entrance tunnel. PSOLUTION: This construction method includes a process of connecting a U-shaped tunnel 18 and the main track tunnel 10 after the U-shaped tunnel 18 is approached in a state of straddling on the two main track tunnels 10 by a U-shaped shield machine, a process of constructing a top slab part 21 of the entrance tunnel 14 by placing concrete in the U-shaped tunnel 18, and a process of forming a branch/confluent width expanding part 16 by connecting to the main track tunnel 10 by constructing a residual skeleton 42 of the entrance tunnel 14 by excavating the natural ground under the top slab part 21. PCOPYRIGHT: (C)2008,JPO&INPIT

机译：

要解决的问题：提供一种隧道入口支路/合流宽度扩大部分的施工方法，该方法可以通过将挖掘的剩余土壤限制在必要的最低限度内，从而确保对社会环境和周围环境的维护，并能够实现安全性。通过使对周围地面的影响最小化来进行施工，并且通过缩短主轨道隧道和入口隧道之间的接合距离而能够简化接合工作。

解决方案：该施工方法包括以下步骤：在U型隧道18跨接在两个主轨道隧道10上的状态下接近U形隧道18之后，将U形隧道18与主轨道隧道10连接起来的过程。形盾构机，通过将混凝土放置在U形隧道18中来构造入口隧道14的顶部平板部分21的过程以及通过连接到主轨道隧道10来形成分支/汇合宽度扩展部分16的过程通过挖掘顶部平板部分21下的自然地面来构造入口隧道14的残余骨架42。

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公开/公告号JP4754391B2

专利类型
公开/公告日2011-08-24

原文格式PDF
申请/专利权人戸田建設株式会社;三菱重工メカトロシステムズ株式会社;
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申请/专利号JP20060104957
发明设计人浅野均;請川誠;下坂賢二;太田光彦;杉山雅彦;室延明;
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申请日2006-04-06
分类号E21D9/06;E21D13/02;
国家 JP
入库时间 2022-08-21 18:20:57

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