摘要
西安咸阳国际机场三期扩建工程与既有地铁14号线盾构隧道安全保护范围存在多处交叉,飞行区工程施工对地铁隧道存在诸多不安全影响因素。依托此工程,论文选取南飞行区与地铁交叉的典型区域采用三维数值模拟分析方法,分析飞行区施工对地铁结构变形及受力的影响。计算结果表明,施工过程中及施工完成后,既有地铁14号线区间隧道结构的各项安全控制指标均能满足规范要求。同时,为后续设计、施工、监测提出相关合理化建议。
The safety protection scope of the third phase expansion project of Xi’an Xianyang International Airport overlaps with the shield tunnel of the existing metro Line 14 in many places.There are many unsafe factors affecting the subway tunnel caused by the construction of the flight area project.Based on this project,this paper selects the typical area of the intersection between the south flight area and the subway to analyze the influence of the construction of the flight area on the deformation and stress of the subway structure by using three-dimensional numerical simulation analysis method.The calculation results show that during and after construction,the safety control indexes of the existing tunnel structure of metro Line 14 can meet the standard requirements.Finally,some reasonable suggestions are put forward for the subsequent design,construction and monitoring.
作者
张挺
ZHANG Ting(Airport Construction Headquarters of China West Airport Group Co.Ltd.,Xi’an 712000,China)
出处
《工程建设与设计》
2024年第10期60-63,共4页
Construction & Design for Engineering
关键词
盾构隧道
数值模拟
变形
西安机场三期
shield tunnel
numerical simulation
deformation
Xi’an airport phaseⅢ
