摘要
以长沙市地铁3号线某明挖车站为依托,采用土工有限元软件Plaxis8.2模拟基坑开挖对地下通道的影响,分析基坑与地下通间隔距离参数变化情况下,地下通道的变形规律.计算结果表明,基坑开挖明显改变了邻近地下通道的变形场.随着间隔距离减小,地下通道的最大水平位移变化较为明显,最大竖向位移变化不大.
Based on the study of Changsha Metro Line 3 of one open-cut station, the geotechnical finite ele ment numerical analysis software Plaxis 8.2 is used to simulate the influence of construction of foundation pit on adjacent underpass, and to analyse the deformation law of adjacent underpass under different net dis- tance between excavation and underpas. The research result shows that the construction of foundation ap- parently changes the deformation field of adjacent underpass. And with the net distance distancing, the maxi- mum horizontal displacement change is more obvious, and the maximum vertical displacement change is less.
出处
《湖南工程学院学报（自然科学版）》
2016年第2期87-90,共4页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省教育厅科研资助项目(10C1286)
湖南省科技厅一般项目(2010CK3035)
关键词
地铁基坑
地下通道
数值分析
metro excavation
underpass
numerical analysis
