The interspaces of shield tail is a main reason for the deformation of soil mass and adjacent structures owing to shield tunnel construction.

盾尾空隙的存在是盾构法隧道施工引起土体变形的重要原因．而土体的变形又会对邻近结构产生影响。

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During the construction of shield machine, tail void grouting is a necessary and key procedure, which can actively control the tunnel uplift and ground subsidence.

对盾尾空隙进行注浆是盾构施工的必备及关键工序，由此达到控制隧道上浮及地面沉降。

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This paper researched the feasibility of using construction diversion tunnel to optimize the figure of tail surge tank by model test.

通过模型试验研究了利用施工导流洞优化尾水调压室体型的可行性。

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