考虑上覆水效应的沉管隧道大型振动台模型试验研究
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- 英文论文题名：The Study of Large Scaled Shaking Table Model Tests with the Influence of Overlying Water on Immersed Tunnel
- 论文作者：程新俊 ; 景立平 ; 崔杰 ; 董瑞 ; 程前
- 英文论文作者：Cheng Xinjun ; Jing Liping ; Cui Jie ; Dong Rui ; Cheng Qian ; Institute of Engineering Mechanics ; China Earthquake Administration ; School of Civil Engineering ; Guangzhou University
- 年：2016
- 作者机构：中国地震局工程力学研究所;广州大学土木工程学院;
- 论文关键词：动水压力 ; 沉管隧道 ; 振动台试验 ; 地震反应 ; 抗震设计
- 英文论文关键词：dynamic water pressure ; immersed tunnel ; shaking table tests ; seismic response ; seismic resistant design
- 会议召开时间：2016-10-27
- 会议录名称：第九届全国防震减灾工程学术研讨会论文集
- 语种：中文
- 分类号：U456;U459.5
- 学会代码：OGTY
- 会议名称：第九届全国防震减灾工程学术研讨会
- 会议地点：中国安徽合肥
- 主办单位：中国土木工程学会、中国工程院土木、水利与建筑工程学部、中国土木工程学会防震减灾工程技术推广委员会、合肥工业大学、安徽省住房和城乡建设厅
- 学会名称：中国土木工程学会
- 页数：8
- 文件大小：331k
- 原文格式：O
- 会议级别：全国
摘要
地震荷载下考虑动水压力对沉管隧道结构内力变化的影响,以港珠澳沉管隧道为原型进行了缩尺比例为1:30的大型振动台试验,试验分为水平向和竖向地震输入两组。取两组试验过程中监测的结构侧墙动土压力、结构应变和结构弯矩进行了对比分析。试验结果表明:地基土的密实程度对结构地震反应存在影响;仅考虑竖向地震作用时,动水压力对结构模型的作用显著;在仅考虑水平向地震作用时,动水压力对结构模型的作用较小;在对结构进行抗震设计时动水压力和竖向地震荷载应要考虑。
The influence of dynamic water pressure on the immersed tunnel structural internal force under the seismic excitation was taken into consideration.Hong kong-zhuhai-macao immersed tunnel was used as the prototype and large shaking table tests with the model scale 1:30 were conducted.The comparative analysis of model seismic response under different direction of earthquake as well as the seismic excitation showed that the compaction rate of ground acted an important role in the seismic analysis of model structure;under the lateral earthquake,the impact of hydrodynamic pressure was remarkable,under the vertical earthquake,the impact of hydrodynamic pressure was small;the dynamic water pressure and vertical earthquake should be taken into account under the seismic resistant design of immersed tunnel.
The influence of dynamic water pressure on the immersed tunnel structural internal force under the seismic excitation was taken into consideration.Hong kong-zhuhai-macao immersed tunnel was used as the prototype and large shaking table tests with the model scale 1:30 were conducted.The comparative analysis of model seismic response under different direction of earthquake as well as the seismic excitation showed that the compaction rate of ground acted an important role in the seismic analysis of model structure;under the lateral earthquake,the impact of hydrodynamic pressure was remarkable,under the vertical earthquake,the impact of hydrodynamic pressure was small;the dynamic water pressure and vertical earthquake should be taken into account under the seismic resistant design of immersed tunnel.
引文
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[8]陈贵红,高波.沉管隧道抗震研究[J].地震研究,2006,29(1):60-64(Chen Gui-hong,Gao Bo.Earthquake-resistant Research of Immersed Tunnels[J].Journal of Seismological Research,2006,29(1):60-64(in Chinese)).
[9]李英,陈越.港珠澳大桥岛隧工程的意义及技术难点[J].工程力学,2011,28:67-77(Li Ying,Chen Yue.The Importance and Technical Difficulties of Tunnel and Islands for Hongkong-ZhuhaiMacao Bridge Project[J].Engineering Mechanics,2011,28(2):67-77(in Chinese))
[10]张敏政.地震模拟实验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58(Zhang Minzheng.Study on Similitude Laws for Shaking Table Tests[J].Earthquake Engineering and Engineering Vibration,1997,17(2):52-58(in Chinese)).
[2]Zhao M,Du X.Explicit Finite Element Artificial Boundary Scheme for Transient Scalar Waves in Two-dimensional Unbounded Wave Guide[J].International Journal for Numerical Methods in Engineering,2011,87:1074-1104.
[3]李鹏.饱和地基中隧道纵向地震反应的数值分析[D].北京:清华大学,2013.(Li Peng.Numerical Analysis for Longitudinal Seismic Response of Tunnels in Saturated Soils[D].Beijing:Tsinghua University,2013(in Chinese)).
[4]St John C M,Zahrah T F.A seismic design of underground structures[J].Tunnelling and Underground Space Technology,1987,2(2):165-197.
[5]王文沛.浅埋地下结构地震反应分析及设计方法研究[D].北京:北京工业大学,2012(Wang Wenpei.Study on Seismic Analysis and Design of Shallow Underground Structures[D].Beijing:Beijing University of Technology,2012.(in Chinese)).
[6]S Okamoto,C Tamura.Behaviour of Subaqueous Tunnels during Earthquakes[J].Earthquake Engineering and Structural Dynamics,1973,1:253-266.
[7]彭海阔,孟光,丁麒等.在地震激励下动水压力对沉管隧道的影响[J].上海交通大学学报,2008,42(6):1027-1031(Peng Hai-kuo,Meng Guang,Ding Qi et al.The Influence of Hydrodynamic Pressure on Immersed Tunnel under Earthquake Excitation[J].Journal of Shanghai Jiaotong University,2008,42(6):1027-1031(in Chinese)).
[8]陈贵红,高波.沉管隧道抗震研究[J].地震研究,2006,29(1):60-64(Chen Gui-hong,Gao Bo.Earthquake-resistant Research of Immersed Tunnels[J].Journal of Seismological Research,2006,29(1):60-64(in Chinese)).
[9]李英,陈越.港珠澳大桥岛隧工程的意义及技术难点[J].工程力学,2011,28:67-77(Li Ying,Chen Yue.The Importance and Technical Difficulties of Tunnel and Islands for Hongkong-ZhuhaiMacao Bridge Project[J].Engineering Mechanics,2011,28(2):67-77(in Chinese))
[10]张敏政.地震模拟实验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58(Zhang Minzheng.Study on Similitude Laws for Shaking Table Tests[J].Earthquake Engineering and Engineering Vibration,1997,17(2):52-58(in Chinese)).