| 列车振动荷载对邻近深基坑的既有站变形影响 |
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| 引用本文： | 毕湘利,周顺华.列车振动荷载对邻近深基坑的既有站变形影响[J].同济大学学报(自然科学版),2004,32(12):1599-1602. |
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| 作者姓名： | 毕湘利 周顺华 |
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| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,200092;上海市地铁建设有限公司,上海,200031
2. 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 通过模拟的轮轨激振荷载 ,分析新建的平行换乘车站深基坑开挖过程中 ,既有车站结构的动力响应 .分析认为 :在换乘站基坑开挖过程中 ,由列车动荷载引起的既有车站结构位移在允许值的 7%范围以内 ;车振荷载主要引起连续墙的竖向振动加速度 ,但基坑开挖后 ,竖向振动加速度变化不大 ,而水平振动加速度幅值有较大增长 .
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| 关 键 词： | 地下铁道 动荷载 基坑 变形 |
| 文章编号： | 0253-374X(2004)12-1599-04 |
Analysis on Deformation of Old Metro Station Close to Deep Excavation by Vehicle Dynamic Load |
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| BI Xiang-li ,ZHOU Shun-hua.Analysis on Deformation of Old Metro Station Close to Deep Excavation by Vehicle Dynamic Load[J].Journal of Tongji University(Natural Science),2004,32(12):1599-1602. |
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| Authors: | BI Xiang-li ZHOU Shun-hua |
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| Institution: | BI Xiang-li 1,2,ZHOU Shun-hua 1 |
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| Abstract: | Based on the modeling dynamic wheel/track load,the dynamic response of old metro station is analyzed during the excavation of a new parallel transfer metro station.The following conclusions can be drawn from the analysis:1.During excavation,the deformation of the structure of the old metro station caused by wheel/track dynamic load is within 7 percent of allowable value;2.Comparecd with lateral acceleration,vertical vibrating acceleration is the key one aroused from wheel/track vibrating load,but the former increases obviously while the latter changes little after excavation. |
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| Keywords: | subway dynamic load foundation pit deformation |
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