| 开挖对地铁盾构隧道影响及控制措施 |
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| 引用本文： | 陈仁朋,王诚杰,鲁立,孟凡衍.开挖对地铁盾构隧道影响及控制措施[J].工程力学,2017,34(12):1-13. |
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| 作者姓名： | 陈仁朋 王诚杰 鲁立 孟凡衍 |
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| 作者单位： | 1.浙江大学软弱土与环境土工教育部重点实验室, 杭州 310058; |
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| 基金项目： | 国家重点研发计划项目（2016YFC0800207）；深圳市交通公用设施建设中心项目（20151118003B）；湖南省重点研发计划项目（0105679005）；中建隧道建设有限公司技术开发课题项目（17430102000417） |
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| 摘 要： | 地铁盾构隧道有严格的变形控制要求。随着地铁网络的密集，邻近开挖已成为地铁隧道安全运营的重要隐患。该文首先介绍了深开挖工程数值模拟中常用的本构模型及参数获取方法。研究了地铁隧道侧面和上方深开挖情况下隧道变形和内力变化规律。提出了侧面开挖和上方开挖隧道变形控制措施。介绍了邻近开挖过程中隧道变形和内力的监测手段。最后，针对盾构隧道发生过大变形导致开裂渗漏水等情况，介绍了隧道结构的加固措施及其效果。
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| 关 键 词： | 岩土工程 变形规律 综述 基坑开挖 变形控制 隧道加固 数值模拟 |
| 收稿时间： | 2017-05-30 |
INFLUENCE OF EXCAVATION ON EXIST METRO SHIELD TUNNEL AND CONTROL MEASURES |
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| Affiliation: | 1.MOE Key Laboratory of Soft Soil and Environmental soil Engineering, Zhejiang University, Hangzhou 310058, China;2.Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;3.College of Civil Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | The metro shield tunnel has strict deformation control requirements. As the development of subway network, the adjacent excavation has become an important hidden threat to subway tunnel safety. First, the paper introduces the commonly used constitutive models and their parameter obtaining method in numerical simulation of a deep excavation project. Then, the change law of the tunnel deformation and stress due to deep excavation in the side or above of a metro tunnel are studied, and tunnel deformation control measures for the excavation with the underlying tunnel or tunnel in flank are developed. Meanwhile the advanced methods of tunnel deformation and force monitoring are introduced. At the end, for the cracks and water-leakage caused by the oversize deformation of the shield tunnel segment, the relevant tunnel reinforcement methods and their effect are presented. The direction for further research is put forward. |
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