| 地铁车站与隧道连接处地震响应分析 |
| |
| 引用本文： | 张文彬,周海祚,郑刚,杨鹏博.地铁车站与隧道连接处地震响应分析[J].西北地震学报,2021,43(2):438-444. |
| |
| 作者姓名： | 张文彬 周海祚 郑刚 杨鹏博 |
| |
| 作者单位： | 天津大学建筑工程学院, 天津 300072;滨海土木工程结构与安全教育部重点实验室(天津大学), 天津 300072 |
| |
| 基金项目： | 国家重点研发计划（2017YFC0805407）；天津市科技计划项目（16YDLJSF00040）；国家自然科学基金重点项目（41630641；51708405） |
| |
| 摘 要： | 结构截面刚度突变处是地下结构抗震的薄弱部位,为研究地铁车站与隧道连接处的地震响应,本文建立有限差分数值模型,分析地震作用下车站与隧道连接处的薄弱部位、连接处附近的侧墙变形分布特征以及地表沉降分布特征,重点探究埋深、地震动特征以及周围土体刚度对连接处隧道应力的影响。结果表明:连接处端墙底部跨中、端墙洞口的顶部和底部是抗震的薄弱部位;连接处端墙存在对侧墙变形分布、地表沉降分布有一定影响;结构埋深,地震动频谱、幅值对连接处隧道应力响应有较大影响,结构周围土体的刚度在一定范围内对连接处隧道应力有较大影响。
|
| 关 键 词： | 地铁车站 隧道 连接部位 地震响应 |
| 收稿时间： | 2018/7/20 0:00:00 |
Seismic Response Analysis of Connection between Metro Station and Tunnel |
| |
| ZHANG Wenbin,ZHOU Haizuo,ZHENG Gang,YANG Pengbo.Seismic Response Analysis of Connection between Metro Station and Tunnel[J].Northwestern Seismological Journal,2021,43(2):438-444. |
| |
| Authors: | ZHANG Wenbin ZHOU Haizuo ZHENG Gang YANG Pengbo |
| |
| Institution: | School of Civil Engineering, Tianjin University, Tianjin 300072, China;Key Laboratory of Coast Civil Structure Safety(Tianjin University), Ministry of Education, Tianjin 300072, China |
| |
| Abstract: | The section in underground structures with varying stiffness is the vulnerable location in seismic analysis. A finite difference method is adopted to study the seismic response of the connection between the station and the tunnel. The response of the connection of the station and tunnel, the deformation distribution of side wall around the connection, and the ground settlement distribution characteristics are analyzed. The influences of buried depth, ground motion characteristics, and stiffness of surrounding soil on the tunnel stress at the connection are particularly investigated. Results show that the middle part at the bottom of the end wall and the top and bottom parts of the end wall at the connection are sensitive to earthquakes. The presence of the end wall influences the deformation distribution of the side walls and ground settlement. The buried depth of the structures, seismic spectrum, and acceleration amplitude significantly affect the seismic response of the connecting tunnel. Additionally, the stiffness of soil around the metro station has an apparent effect on the stress distribution in the tunnel. |
| |
| Keywords: | metro station tunnel connection part seismic response |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
