摘要
【目的】为了分析地铁开挖对地面沉降的影响。【方法】本研究以郑州市轨道交通7号线一期工程土建施工02工区黄河迎宾馆站至英才街站区间左线盾构区间为研究对象,建立了FLAC3D计算模型,研究了模型隧道开挖后形成的位移曲线。【结果】得到隧道开挖掘进地表的沉降规律,与实际工况基本吻合。【结论】说明数值模拟对盾构施工前期研究具有一定的参考价值。
[Purposes]In order to analyze the influence of subway excavation on land subsidence.[Meth⁃ods]In this study,the left line shield section between Huanghe Yingbin Hotel Station and Yingcai Street Station in the 02 working area of the civil construction of the first phase of Zhengzhou Rail Transit Line 7 was taken as the research object.The FLAC^(3D)calculation model was established to study the displace⁃ment curve formed after the excavation of the model tunnel.[Findings]The settlement law of tunnel ex⁃cavation surface was obtained,which was basically consistent with the actual working condition.[Con⁃clusions]The numerical simulation has certain reference value for the preliminary study of shield con⁃struction.
作者
杨锦涛
YANG Jintao(College of Geosciences and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)
出处
《河南科技》
2023年第8期61-64,共4页
Henan Science and Technology
关键词
FLAC3D
隧道开挖
沉降分析
地层参数
FLAC^(3D)
tunnel excavation
settlement analysis
formation parameters
