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中文摘要：
为解决以往盾构隧道的地层沉降计算不考虑施工扰动土体的固结沉降对总沉降的影响而使得计算结果偏小的问题,通过对盾构隧道施工致周边土体的扰动机理分析,指出盾构上方一定范围内的被扰动土体为欠固结土,应用欠固结土的沉降计算理论,得出了考虑盾构扰动周边土体固结影响的隧道沉降计算修正方法。与工程实测值的对比结果表明,地层沉降计算修正方法的计算结果更符合工程实际,工程应用上偏于安全,该成果对于盾构隧道施工的地层沉降预测与控制具有一定的参考价值。
英文摘要：
Traditional analytical solutions for shield tunneling-induced ground settlement do not account for the consolidation of boundary disturbed soil.The analysis on the mechanism of shield tunneling induced boundary soil disturbance reveals that the soil near the shield-disturbed zone is under-consolidated soil.Based on the consolidation theory of under-consolidated soil and the traditional analytical solutions,a new shield tunneling-induced ground settlement calculation method is proposed,which accounts for the consolidation of disturbed soil.A case study in Shanghai’s tunnel construction shows that the calculation results using proposed method are in line with the observed data on site.
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Prediction of Shield Tunneling Induced Ground Settlement Considering Soil-Water Coupled and around S
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