| 京张高铁清河站深基坑支护结构设计 |
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| 引用本文： | 傅慧敏,吴海洋,昝海柱,李喜庆,王永.京张高铁清河站深基坑支护结构设计[J].铁道勘察,2020(1):87-94. |
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| 作者姓名： | 傅慧敏 吴海洋 昝海柱 李喜庆 王永 |
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| 作者单位： | 中铁工程设计咨询集团有限公司;北京交通大学建筑勘察设计院有限公司;北京城建勘测设计研究院有限责任公司 |
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| 基金项目： | 中铁工程设计咨询集团有限公司科技开发计划课题(研2017-26) |
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| 摘 要： | 京张高铁清河站基坑邻近地铁13号线,最近处仅5. 6 m,基坑深度达17. 5 m,需要设计安全合理的支护结构,保证既有地铁13号线的运营安全。建立"基坑支护结构+土体+13号线结构"的三维模型,对13号线地铁结构的安全性进行评估,提出满足地铁运营安全的基坑支护结构的变形标准,改进支护结构的设计方案,基坑实施阶段的变形监测结果验证了此数值分析方法的理论可靠性。
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| 关 键 词： | 京张高铁 深基坑 支护结构 风险源 既有设施 三维模型 变形标准 基坑监测 |
Design of Support Structure for Deep Foundation Pit of Qinghe Station of Beijing-Zhangjiakou High-speed Railway |
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| Fu Huimin,Wu Haiyang,Zan Haizhu,Li Xiqing,Wang Yong.Design of Support Structure for Deep Foundation Pit of Qinghe Station of Beijing-Zhangjiakou High-speed Railway[J].Railway Investigation and Surveying,2020(1):87-94. |
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| Authors: | Fu Huimin Wu Haiyang Zan Haizhu Li Xiqing Wang Yong |
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| Institution: | (China Railway Engineering Design and Consulting Group Co.,Ltd.,Beijing 100055,China;Beijing Jiaoda Architectural Design and Engineering Survey Co.,Ltd.,Beijing 100044,China;Beijing Urban Construction Exploration and Surveying Design Research Institute Co.,Ltd.,Beijing 100101,China) |
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| Abstract: | The foundation pit of Qinghe Station of Beijing-Zhangjiakou High-speed Railway is close to Metro Line 13,the nearest distance is only 5. 6 m,and the depth of the foundation pit is 17. 5 m. It is necessary to design a safe and reasonable support structure to ensure the operation safety of the existing Metro Line 13.Through the establishment of the three-dimensional model of "foundation pit support structure + soil + Line13 structure",the safety of the Metro Line 13 structure is evaluated,and the deformation-controlled standard of foundation pit support meeting the operation safety of the metro is proposed. The design scheme of the supporting structure is improved. The theoretical reliability of the numerical analysis method is verified by the deformation monitoring results in the construction stage of the foundation pit. |
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| Keywords: | Beijing-Zhangjiakou High-speed Railway Deep foundation pit Supporting structure Risk source Existing facilities Three-dimensional model Deformation standard Foundation pit monitoring |
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