摘要:针对马蹄形盾构施工引起的土体变形,基于Mindlin位移解和随机介质理论,考虑不同因素对土体竖向位移的影响,提出了马蹄形盾构施工引起的土体竖向位移计算方式。研究结果表明,造成开挖面前方隆起的主要原因为马蹄形盾构施工的盾壳摩擦力;在取不同正面附加推力时,对隆起影响不同,表现为正面附加推力越大,隆起越明显;在土体损失率不同的工况下,土体损失引起的沉降量与土体损失率呈正相关。
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