摘要
随着城市轨道交通的发展,邻近地铁线路进行工程施工变得不可避免,研究基坑开挖对于地铁结构的影响具有重要意义,也关系着地铁交通的安全运营。基于深圳市某基坑开挖工程,采用数值模拟方法研究了基坑开挖对14号线地铁隧道和车站结构的影响。计算分析结果表明:基坑开挖会对邻近地铁结构的内力变形产生一定影响,但是影响程度较小,对于基坑根据不同区段采用不同的支护方式,可以保证地铁线路的安全运营。研究成果对于深圳地铁沿线邻近地铁隧道的基坑设计和施工具有借鉴意义。
With the development of urban rail transit,it is inevitable that engineering construction will take place near the adjacent sub‐way lines.The study of excavation pits has important significance for the impact on subway structures and also affects the safe operation of subway transportation.Based on a foundation pit excavation project in Shenzhen,the impact of the pit excavation on the tunnel and station structures of Line 14 subway was studied using numerical simulation.The calculation and analysis results show that the excavation of the pit will have a certain impact on the internal force deformation of the adjacent subway structure,but the degree of impact is small.By adopting different support methods for the excavation pit according to different sections,the safe operation of the subway line can be ensured.The re‐search results of this article have reference significance for the design and construction of excavation pits near subway tunnels along the Shen‐zhen subway line.
作者
敖文龙
彭远新
袁勋
林沛元
AO Wenlong;PENG Yuanxin;YUAN Xun;LIN Peiyuan(Shenzhen Geological Bureau Shenzhen 518023,China;School of Civil Engineering,Sun Yat-Sen University Guangzhou 510275,China)
出处
《广东土木与建筑》
2023年第9期1-5,共5页
Guangdong Architecture Civil Engineering
基金
国家自然科学基金(52008408)。
关键词
基坑
开挖
地铁隧道
数值模拟
安全运营
foundation pit
excavation
metro tunnel
numerical simulation
safety operation
