盾构隧道注浆填充率对地层沉降影响的研究

以上海软弱土层为背景，通过数值模拟结合离心机试验，研究了不同注浆填充率对施工期和施工后地表沉降的影响。分析结果表明:注浆填充率越大施工期地表沉降越小，工后沉降越大；注浆填充率对施工期和工后地表沉降的影响与隧道埋深有关。

Research on Influence of Grouting Rate of the Shield Tunnel on the Stratum Settlement

Based on Shanghai’s typical soft layer, method of centrifuge modelling together with numerical simulation is adopted to study the settlement problem during and after the construction under different grouting rates. The results show that the higher the grouting rate, the less the surface settlement during construction and the more after the construction; and the influence of the grouting rate on the surface settlement during and after the construction is related to the burial depth of the tunnel.