摘要
针对暗挖隧道施工过程中对既有地铁车站的影响,笔者结合实际隧道暗挖工程模拟其施工全过程。结果显示:呈现狭长特性的隧道,其基坑周围地表的最大竖向位移出现在隧道南、北两侧且呈对称分布;基坑地表变形最严重的一层其沉降曲线呈现明显的“凹陷状”;随着开挖深度的逐渐增加,隧道北侧地表竖向位移的增加值与其呈现非线性的变化趋势。结论:暗挖隧道施工对于既有地铁车站的影响很小。
Based on the excavated tunnel construction influences on the existing subway station,we combined the actual tunnel excavation project to simulate the entire construction process in this work.The research shows that:Due to the narrow and long tunnel characteristics,the maximum vertical displacement of the ground around the foundation pit appears on the south and north sides of the tunnel and is symmetrically distributed;The most severely deformed layer on the ground surface of the foundation pit has a clear"sag";With the gradual increase of the excavation depth,the increase in the vertical displacement of the ground surface on the north side of the tunnel has a non-linear trend.Conclusion:The influence of the tunnel construction on existing subway stations is small.
作者
王正超
徐玉坤
高杨
朱新迪
胡俊
WANG Zhengchao;XU Yukun;GAO Yang;ZHU Xindi;HU Jun(China Construction Eighth Engineering Bureau First Construction Co.,LTD,Jinan,Shandong 250000,China)
出处
《贵州师范大学学报（自然科学版）》
CAS
2021年第2期87-91,共5页
Journal of Guizhou Normal University：Natural Sciences
关键词
暗挖隧道
沉降曲线
开挖深度
tunnel digging
settlement curve
excavation depth
