地面出入式盾构隧道稳定性控制措施有效性研究

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摘要文章以南京地面出入式盾构工程为背景，采用三维有限元模拟了地面出入式盾构隧道的整个施工过程，通过在模型中施加隧道内部压重与地表堆载，研究了两者对控制隧道上浮量、提高隧道稳定性的有效性。分析计算结果与现场监测数据表明：内部压重能够明显地提高隧道的稳定性，且效果比较明显；地表堆载也能在一定程度上减小隧道的上浮量，但其效果没有内部压重明显；施工中应结合现场实际条件，综合采用两者来实现最佳的稳定隧道效果。

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	吴惠明1
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Abstract： Based on the Nanjing ground-penetrating shield tunnel project, the finite-element simulation method is adopted to simulate the whole construction process of the ground-penetrating shield. An internal counterweight and surface loading are imposed on the model to analyze their effectiveness at controlling floating and improving stability of the tunnel. The results show that the internal counterweight can significantly improve the stability of the tunnel, while surface loading can reduce tunnel floating to some extent without obvious effects. According to in-situ conditions, the best way to realize the optimum stability of the tunnel is the combination of an internal counterweight and surface loading.

Keywords： Ground-penetrating shield tunnel, Tunnel floating, Internal counterweight, Surface loading, Stability

出版日期: 2014-08-07

基金资助:基金项目：上海市科委项目（11231202700）.

作者简介: 作者简介：吴惠明（1970-），男，教授级高工，主要从事隧道施工技术研究工作，E-mail:whm_stec@163.com.

引用本文:

吴惠明1, 2, 滕丽3等 .地面出入式盾构隧道稳定性控制措施有效性研究[J] 现代隧道技术, 2014,V51(5): 61-65

WU Hui-Ming-1, 2 , Teng-Li-3 etc .Analysis of the Stability Control Measures for a Ground-Penetrating Shield Tunnel [J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(5): 61-65

链接本文:

http://www.xdsdjs.com/CN/ 或 http://www.xdsdjs.com/CN/Y2014/V51/I5/61