| 后掘盾构越先掘盾构对地层变形的影响研究 |
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| 引用本文： | 白云,戴志仁,徐飞,彭芳乐. 后掘盾构越先掘盾构对地层变形的影响研究[J]. 土木工程学报, 2011, 0(2): 128-135 |
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| 作者姓名： | 白云 戴志仁 徐飞 彭芳乐 |
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| 作者单位： | 同济大学;中铁第一勘察设计院集团有限公司;上海城建集团; |
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| 摘 要： | 以上海市轨道交通七号线某区间隧道工程实例为背景,针对后掘进盾构施工超越先掘进盾构的特殊情况,首先通过数值模拟技术,介绍并行土压平衡盾构超越施工的相互影响,之后对超越期间的地面沉降数据进行深入的分析,并对施工中盾构机高程变化趋势进行分析,明确近距离超越施工的具体影响,最后对隧道交叠施工对周围土体的扰动机理进行分析,加深超越施工对地层影响规律的认识,研究结果为后续类似工程的设计与施工积累经验。
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| 关 键 词： | 盾构隧道 超越 沉降曲线 水平偏差 滞后性 敏感性 |
Study of the influence of one shield passing another on ground deformation for construction of parallel tunnels |
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| Bai Yun Dai Zhiren Xu Fei Peng Fangle. Study of the influence of one shield passing another on ground deformation for construction of parallel tunnels[J]. China Civil Engineering Journal, 2011, 0(2): 128-135 |
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| Authors: | Bai Yun Dai Zhiren Xu Fei Peng Fangle |
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| Affiliation: | Bai Yun1 Dai Zhiren2 Xu Fei3 Peng Fangle1 |
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| Abstract: | The mutual influence between parallel shield tunneling is studied by numerical simulation,with the project of Shanghai metro Line 7 as the background,and the ground settlement during the period of one shield passing another is analyzed.The degree,pattern and scope of mutual influences are analyzed.The mechanism of the disturbance to the surrounding soil during the passing period is analyzed. |
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| Keywords: | shield tunnel passing settlement curve horizontal deviation lag sensitivity |
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