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大型基坑近距离开挖对既有地铁车站结构安全影响研究

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针对大型基坑开挖对邻近既有地铁车站结构安全的影响,以实际工程为例,采用Midas GTS有限元软件对基坑开挖进行模拟分析,研究了基坑不同开挖阶段时风亭及出入口结构的位移及变化规律,通过与实际监测数据比较得出,模拟结果与实际数据一致,该计算能模拟出施工的变形情况.
Study on the Safety Influence of ExistingSubwaySationSructureBased on the Ecavation of Large Foundation Pit
Focusing on the safety influence of the existing subway station structure caused by the excavation of large foun-dation pit,this paper takes an actual project as an example,uses the Midas GTS finite element software to simulate and analyze the excavation of foundation pit,and studies the displacement and variation patterns of the wind pavilion and entrance structure during different excavation stages of the foundation pit,by comparing with actual monitoring data,the simulation results are consistent with the actual data,this calculation can simulate the deformation situation during construction.

excavation of foundation pitssubway stationssructure safety

丰友山、胡长勇

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中铁第六勘察设计院集团有限公司,江苏 无锡 214000

基坑开挖 地铁车站 结构安全

2024

天津建设科技
天津市建设科技信息中心 天津市市政工程研究院

天津建设科技

影响因子:0.299
ISSN:1008-3197
年,卷(期):2024.34(1)
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