某工程建设对成都地铁2号线隧道的安全性影响评估

发布时间：2018-04-05 12:44

本文选题：基坑　切入点：盾构隧道　出处：《四川建筑科学研究》2017年05期

【摘要】：成都市某工程地下结构部分上跨已运营的成都地铁2号线盾构隧道,其基坑上跨段地质条件复杂,且有部分地下两层基坑已施工完成。针对该工程深基坑与邻近地铁隧道之间的相互影响分析,应用有限元建立了岩土-结构整体计算模型,对工程基坑及上部结构施工对隧道安全性的影响进行了评估。为减小基坑变形对地铁的影响,从安全可靠、经济合理的方面出发,提出了针对措施及建议,供类似工程参考。
[Abstract]:The geological conditions of the upper span section of the shield tunnel of Chengdu Metro Line 2 are complicated and some of the underground two-story foundation pits have been completed.Based on the analysis of the interaction between the deep foundation pit and the adjacent subway tunnel, the geotechnical and structural integral calculation model is established by using finite element method, and the influence of the foundation pit and the superstructure construction on the tunnel safety is evaluated.In order to reduce the influence of foundation pit deformation on subway, from the aspects of safety, reliability, economy and rationality, the paper puts forward some measures and suggestions for the reference of similar projects.
【作者单位】：四川省建筑科学研究院;
【基金】：华西集团科技项目(HXKX2014/012)
【分类号】：TU753;U451

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