Railway tunnel shield construction method for synchronous lining and tunneling construction and trolley sleeper: Fid-Bau Portal

Railway tunnel shield construction method for synchronous lining and tunneling construction and trolley sleeper

SUN FENG / FENG KUN / ZHANG DI / HU WEIDONG

The invention discloses a lining and tunneling synchronous construction railway tunnel shield construction method, which belongs to the technical field of railway tunnel shield construction, and comprises the following steps: laying an electric vehicle sleeper and an electric vehicle track; laying a trolley sleeper and a trolley track; pushing a trolley and a lining pouring platform; lining steel bars are configured and tied; bench formwork positioning and end formwork mounting; mounting a bottom steel plug; pouring lining concrete; lining concrete curing and bench formwork cleaning; trolley rails and trolley sleepers are dismantled and transferred; and the next pouring section is poured. The invention further discloses a trolley sleeper which comprises the first arc-shaped profile steel, the second arc-shaped profile steel, the vertical supporting profile steel and the transverse rail surface profile steel. Synchronous construction of lining and shield tunneling can be achieved, and the construction efficiency is remarkably improved; the trolley sleeper is convenient to assemble and disassemble quickly, can be recycled, and is suitable for synchronous construction operation of shield tunnel linings and shield tunneling of most railways.

本发明公开了一种内衬与掘进同步施工的铁路隧道盾构施工方法，属于铁路隧道盾构施工技术领域，包括以下步骤：铺设电车轨枕及电车轨道；铺设台车轨枕及台车轨道；台车及内衬浇筑平台推进；内衬钢筋配置及扎筋；台模定位及端模安装；安装底部钢堵头；内衬混凝土浇筑；内衬混凝土养护及台模清理；台车轨道及台车轨枕拆除并转移；进行下一浇筑段浇筑。本发明还公开了一种台车轨枕，包括第一弧形型钢、第二弧形型钢、竖向支撑型钢和横向轨面型钢。本发明能够实现内衬与盾构掘进同步施工，显著提高了施工效率；本发明的台车轨枕便于快速装拆，能够循环利用，适用于大多数铁路盾构隧道内衬与盾构掘进的同步施工作业。

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