| 珠三角地区典型地层地铁区间隧道动力特性分析 |
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| 引用本文： | 王祥秋,张玉红,杨林德.珠三角地区典型地层地铁区间隧道动力特性分析[J].振动与冲击,2008,27(1):151-154. |
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| 作者姓名： | 王祥秋 张玉红 杨林德 |
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| 作者单位： | 1. 佛山大学环境与土木建筑学院,广东佛山,528000
2. 同济大学地下建筑与工程系,上海,200092 |
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| 基金项目： | 广东省自然科学基金
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佛山大学博士启动基金 |
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| 摘 要： | 基于等厚度夹层单元与粘弹性边界条件,建立隧道-围岩体系的动力有限元分析模型,模拟围岩及其衬砌结构之间的力学性态;基于地铁列车振动加速度现场测试成果,选择结构动力有限元计算的时域分析法,对珠三角地区典型土层地铁区间隧道衬砌结构在列车振动荷载作用下的动力响应特性进行分析,获得了不同围岩类别地铁区间隧道的动力响应规律,研究成果对分析地铁隧道动力稳定性具有重要意义.
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| 关 键 词： | 隧道-围岩体系 等厚度夹层单元 粘弹性边界 动力分析 珠三角地区 地层 地铁区间隧道 动力稳定性 特性分析 SUBWAY LINE DYNAMIC CHARACTERISTICS ANALYSIS THE PEARL RIVER DELTA LAYERS REPRESENTATIVE 意义 地铁隧道 研究 规律 动力响应 围岩类别 响应特性 荷载作用 |
| 收稿时间： | 2007-02-06 |
| 修稿时间： | 2007-05-09 |
ANALYSIS OF DYNAMIC CHARACTERISTICS FOR A LINE OF SUBWAY'S INTERZONE TUNNEL IN REPRESENTATIVE LAYERS OF THE PEARL RIVER DELTA |
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| WANG Xiang-qiu,ZHANG Yu-hong,Yang Lin-de.ANALYSIS OF DYNAMIC CHARACTERISTICS FOR A LINE OF SUBWAY'S INTERZONE TUNNEL IN REPRESENTATIVE LAYERS OF THE PEARL RIVER DELTA[J].Journal of Vibration and Shock,2008,27(1):151-154. |
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| Authors: | WANG Xiang-qiu ZHANG Yu-hong Yang Lin-de |
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| Abstract: | A dynamic FEM model is established for a system of tunnel and surrounding rockmass based on the interlayer element with equivalent thickness,the conditions of visco elastic boundary and the in-situ vibration results of subway train.The time domain method for the dynamic FEM is chosen to simulate the dynamic response properties of surrounding rockmass and the tunnel lining structure in representative layers of the Pearl River Delta.The dynamic response regulations are obtained for the lining structure of tunnel built in different layers.Those results are very valuable for design and analysis of dynamic stability of the subway's tunnel. |
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| Keywords: | system of tunnel and surrounding rockmass interlayer element with equivalent thickness visco-elastic boundary dynamic analysis finite element method(FEM) |
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