多维地震波作用下软土场地隧道结构的动力响应分析
详细信息 查看官网全文
- 英文论文题名：Dynamic Response Analysis of Tunnel in Soft Sites under Multi-Dimensional Excitation
- 论文作者：姜文磊 ; 陈清军
- 英文论文作者：Jiang Wenlei ; Chen Qingjun ; State Key Laboratory of Disaster Reduction in Civil Engineering ; Tongji University
- 年：2016
- 作者机构：同济大学土木工程防灾国家重点实验室;
- 论文关键词：上下并行隧道 ; 软土场地 ; 多维地震波 ; 土-结构相互作用 ; 有限元法
- 英文论文关键词：twin tunnels ; soft site ; multi-dimensional seismic wave ; soil-structure interaction ; finite element method
- 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：TU435;U451
- 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：9
- 文件大小：1026k
- 原文格式：O
- 会议级别：全国
摘要
为研究多维地震波作用下软土场地中上下并行隧道结构的动力响应特征,本文以上海软土场地某地铁隧道为背景,采用ANSYS软件建立上下并行隧道的二维有限元模型,选取三组含水平分量和竖向分量的不同地震波作为输入,对比分析了水平向地震动单独输入与多维地震动(含水平向和竖向)输入下隧道结构内力反应的差异,讨论了不同地震波的作用效应以及上下隧道间距对隧道结构地震反应的影响。结果表明:与水平向地震动单独输入下的结果相比,在多维地震波作用下,隧道结构的轴力增大较为明显;软土场地上下并行地铁隧道之间存在结构-土-结构相互作用效应,当并行隧道间距小于一倍隧道外径时,随着隧道间距D的减小,结构内力反应值逐渐增大,其中剪力幅值的增大最为明显。
To study the dynamic response characteristics of twin—tunnel structures in soft sites under multi—dimensional seismic excitations,two—dimensional plane strain numerical models of single and twin—tune structures were established by using the general finite element software ANSYS based on the background of a subway tunnel in Shanghai soft site.Three groups of different seismic waves with horizontal and vertical components were selected as input,and the difference of internal force response of tunnel structure subjected to horizontal only and multi— dimensionaK simultaneous horizontal and vertical components) seismic excitation was compared.The effects of different seismic excitations and the influence of space between twin tunnels to the seismic response of the tunnel were also discussed.Numerical results show that:with respect to horizontal seismic excitation,the multi — dimensional seismic excitation tends to have larger influences on the axial force of tunnel structure;structure—soil —structure interaction exists between parallel tunnels built in soft site,when the space between twin tunnels is smaller than the diameter of corresponding tunnel structural internal force response increase gradually with decreasing distance between tunnels,and shear force amplitudes show more significant amplification among the structural internal forces.
To study the dynamic response characteristics of twin—tunnel structures in soft sites under multi—dimensional seismic excitations,two—dimensional plane strain numerical models of single and twin—tune structures were established by using the general finite element software ANSYS based on the background of a subway tunnel in Shanghai soft site.Three groups of different seismic waves with horizontal and vertical components were selected as input,and the difference of internal force response of tunnel structure subjected to horizontal only and multi— dimensionaK simultaneous horizontal and vertical components) seismic excitation was compared.The effects of different seismic excitations and the influence of space between twin tunnels to the seismic response of the tunnel were also discussed.Numerical results show that:with respect to horizontal seismic excitation,the multi — dimensional seismic excitation tends to have larger influences on the axial force of tunnel structure;structure—soil —structure interaction exists between parallel tunnels built in soft site,when the space between twin tunnels is smaller than the diameter of corresponding tunnel structural internal force response increase gradually with decreasing distance between tunnels,and shear force amplitudes show more significant amplification among the structural internal forces.
引文
[1]钱七虎.现代城市地下空间开发利用技术及其发展趋势[J].铁道建筑技术,2000,(5):1-5.
[2]钱七虎.岩土工程的第四次浪潮[J].地下空间,1999,19(4):267-272.
[3]庄海洋,程绍革,陈国兴.阪神地震中大开地铁车站震害机制数值仿真分析[J].岩土力学,2008,29(1):245-250(Zhuang Haiyang,Cheng Shaoge,Chen Guoxing.Numerical simulation and analysis of earthquake damages of Dakai metro station caused by Kobe earthquake[J].Rock and Soil Mechanics,2008,29(1):245-250.(in Chinese))
[4]于翔,钱七虎,赵跃堂,等.地铁工程结构破坏的竖向地震力影响分析[J].解放军理工大学学报(自然科学版),2001,2(30):30-35(Yu Xiang,Qian Qihu,Zhao Yuetang,et al.Analysis of vertical earthquake influence on damage to subway structures[J].Journal of PLA University of Science and Technology,2001,2(3):30-35.(in Chinese))
[5]Hatzigeorgiou G D,Beskos D E.Soil-structure interaction effects on seismic inelastic analysis of 3-D tunnels[J].Soil Dynamic and Earthquake Engineering,2010,30(9):851-861.
[6]刘晶波,李彬,谷音,等.地铁盾构隧道地震反应分析[J].清华大学学报(自然科学版),2005,45(6):251-257(Liu Jingbo,Li Bin,Gu Yin.Seismic response analysis of shielded subway tunnels[J].Journal of Tsinghua University(Science and Technology),2005,45(6):251-257.(in Chinese))
[7]庄海洋,陈国兴.双洞单轨地铁区间隧道非线性地震反应分析[J].地震工程与工程振动,2006,26(2):131-137(Zhuang Haiyang,Chen Guoxing.Analysis of nonlinear earthquake response of metro double-tunnels[J].Earthquake Engineering and Engineering Vibration,2006,26(2):131-137.(in Chinese))
[8]张亚军,兰宏亮,崔永高,等.上海地区土动剪切模量比和阻尼比的统计研究[J].世界地震工程,2010,26(2):171-175(Zhang Yajun,Lan Hongliang,Cui Yonggao,et al.Statistical studies on shear modulus ratios and damping ratios of soil in Shanghai area[J].World Earthquake Engineering,2010,26(2):171-175.(in Chinese))
[9]黄雨,叶为民,唐益群,等.上海深厚饱和覆盖土层的动力耦合地震反应分析[J].岩土力学,2002,23(4):411-416(Huang Yu,Ye Weimin,Tang Yiqun,et al.Coupled seismic response analysis of deep saturated soil covering layers in Shanghai[J].Rock and Soil Mechanics,2002,23(4):411-416.(in Chinese))
[10]楼梦麟,潘旦光,范立础.土层地震反应分析中侧向人工边界的影响[J].同济大学学报(自然科学版),2003,31(7):757-761(Lou Menglin,Pan Danguang,Fan Lichu.Effect of vertical artificial boundary on seismic response of soil layer[J].Journal of Tongji University(Science and Technology),2003,31(7):757-761.(in Chinese))
[2]钱七虎.岩土工程的第四次浪潮[J].地下空间,1999,19(4):267-272.
[3]庄海洋,程绍革,陈国兴.阪神地震中大开地铁车站震害机制数值仿真分析[J].岩土力学,2008,29(1):245-250(Zhuang Haiyang,Cheng Shaoge,Chen Guoxing.Numerical simulation and analysis of earthquake damages of Dakai metro station caused by Kobe earthquake[J].Rock and Soil Mechanics,2008,29(1):245-250.(in Chinese))
[4]于翔,钱七虎,赵跃堂,等.地铁工程结构破坏的竖向地震力影响分析[J].解放军理工大学学报(自然科学版),2001,2(30):30-35(Yu Xiang,Qian Qihu,Zhao Yuetang,et al.Analysis of vertical earthquake influence on damage to subway structures[J].Journal of PLA University of Science and Technology,2001,2(3):30-35.(in Chinese))
[5]Hatzigeorgiou G D,Beskos D E.Soil-structure interaction effects on seismic inelastic analysis of 3-D tunnels[J].Soil Dynamic and Earthquake Engineering,2010,30(9):851-861.
[6]刘晶波,李彬,谷音,等.地铁盾构隧道地震反应分析[J].清华大学学报(自然科学版),2005,45(6):251-257(Liu Jingbo,Li Bin,Gu Yin.Seismic response analysis of shielded subway tunnels[J].Journal of Tsinghua University(Science and Technology),2005,45(6):251-257.(in Chinese))
[7]庄海洋,陈国兴.双洞单轨地铁区间隧道非线性地震反应分析[J].地震工程与工程振动,2006,26(2):131-137(Zhuang Haiyang,Chen Guoxing.Analysis of nonlinear earthquake response of metro double-tunnels[J].Earthquake Engineering and Engineering Vibration,2006,26(2):131-137.(in Chinese))
[8]张亚军,兰宏亮,崔永高,等.上海地区土动剪切模量比和阻尼比的统计研究[J].世界地震工程,2010,26(2):171-175(Zhang Yajun,Lan Hongliang,Cui Yonggao,et al.Statistical studies on shear modulus ratios and damping ratios of soil in Shanghai area[J].World Earthquake Engineering,2010,26(2):171-175.(in Chinese))
[9]黄雨,叶为民,唐益群,等.上海深厚饱和覆盖土层的动力耦合地震反应分析[J].岩土力学,2002,23(4):411-416(Huang Yu,Ye Weimin,Tang Yiqun,et al.Coupled seismic response analysis of deep saturated soil covering layers in Shanghai[J].Rock and Soil Mechanics,2002,23(4):411-416.(in Chinese))
[10]楼梦麟,潘旦光,范立础.土层地震反应分析中侧向人工边界的影响[J].同济大学学报(自然科学版),2003,31(7):757-761(Lou Menglin,Pan Danguang,Fan Lichu.Effect of vertical artificial boundary on seismic response of soil layer[J].Journal of Tongji University(Science and Technology),2003,31(7):757-761.(in Chinese))