盾构沿小半径曲线掘进, 是地铁施工中的一个主要难点, 提高地铁隧道的质量和精度, 可以通过正确的管片选型来进行.论文以成都地铁4号线凤南区间为主, 通过分析右线盾构穿越小曲线的施工方案, 从而为今后的地铁盾构设计起到一定的借鉴作用.%Shield tunneling along small radius curve is a major difficulty in metro construction. To improve the quality and accuracy of metro tunnels, it can be done through correct segment selection. In this paper, the Fengnan section of Chengdu metro line 4 is taken as the main part, and the construction scheme of right-line shield tunneling through small curve is analyzed. The design of metro shield after that can be used for reference.
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