富水圆砾地层盾构隧道施工对地表及建筑物影响分析
任建喜郑康龙
Influence of Shield Tunnel Construction in Waterrich Gravel Stratum on Surface and Buildings
REN JianxiZHENG Kanglong
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作者信息:西安科技大学建筑与土木工程学院，710054，西安
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Affiliation:School of Architecture and Civil Engineering, Xi′an University of Science and Technology， 710054， Xi′an， China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.01.004
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中图分类号/CLCN:TU433；U456.3
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栏目/Col:研究报告
摘要:
以在富水圆砾地层的盾构双线隧道先后通过邻近建筑物为研究背景，通过现场监测和数值计算方法，对双线隧道施工引起地表及既有建筑物变形规律进行研究。研究结果表明，随着地层深度增加，沉降槽宽度减小；地表最大沉降量出现在先行隧道中线上方；刀盘通过地表中心断面后，地表及建筑物沉降逐渐趋于稳定；当偏离比在一定范围内，随着建筑物与隧道间距减小时，建筑受到的影响逐渐增大
Abstracts:
The adjacent buildings of twin-track shield tunnel in water-rich gravel stratum are taken as the research background. Through onsite monitoring and numerical value calculation method, the deformation of the surface and existing buildings caused by twin-track tunnel construction is studied. The results show that as the depth of formation increases, the width of the settlement tank will decrease, the maximum settlement of the surface will appear above the midline of the first tunnel. The surface and building settlement will tend to be stable after the cutterhead passing through the surface central section. When the deviation ratio is within a certain range, the impact on buildings increases as the distance between the building and tunnel decreases.
引文 / Ref:
任建喜，郑康龙.富水圆砾地层盾构隧道施工对地表及建筑物影响分析[J].城市轨道交通研究，2020，23（1）：14.
REN Jianxi，ZHENG Kanglong.Influence of Shield Tunnel Construction in Waterrich Gravel Stratum on Surface and Buildings[J].Urban mass transit，2020，23（1）：14.
REN Jianxi，ZHENG Kanglong.Influence of Shield Tunnel Construction in Waterrich Gravel Stratum on Surface and Buildings[J].Urban mass transit，2020，23（1）：14.
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