软土地层深基坑施工对临近区间隧道影响数值分析_OpenScirbe Publishing

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软土地层深基坑施工对临近区间隧道影响数值分析

Author(s)：
罗小松

Publication Title：

Urban and Rural Studies 2024 No.08

Affiliations：
中铁第一勘察设计院集团有限公司

Abstract：
根据软土地层中某临近区间隧道的深基坑工程实例，采用Midas-GTS三维有限元软件模拟分析基坑施工中对周边地层、区间隧道的变形影响。结果表明：基坑开挖施工后周边地层将产生向基坑内部的变形，基坑底部产生因卸载隆起变形，支护结构最大水平变形为14.423mm；地下一层基坑开挖引起区间隧道水平变形为2.177mm，竖向变形为0.678mm，地下二层坑中坑基坑开挖对区间隧道影响较小，区间隧道变形值满足国家规范限制要求，说明基坑支护结构选型合理、可行。

Keywords：
深基坑；区间隧道；数值模拟；变形

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[1] 罗小松.软土地层深基坑施工对临近区间隧道影响数值分析[J].Urban and Rural Studies,2024(08),.

城镇建设

Urban and Rural Studies

Language: 中文

CN：10-1589/TU

ISSN：2096-6539

Publication Frequency: 半月刊

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