[1]禹海涛,张正伟,吴勇信,等.变刚度隧道纵向简化地震响应分析方法[J].地震工程与工程振动,2018,(04):070-76.[doi:10.13197/j.eeev.2018.04.70.yuht.011]
 YU Haitao,ZHANG Zhengwei,WU Yongxin,et al.Analysis methods for simplified longitudinal seismic response of variable stiffness tunnels[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):070-76.[doi:10.13197/j.eeev.2018.04.70.yuht.011]
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变刚度隧道纵向简化地震响应分析方法
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
070-76
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Analysis methods for simplified longitudinal seismic response of variable stiffness tunnels
作者:
禹海涛12 张正伟3 吴勇信4 戴春祥5
1. 同济大学 岩土及地下工程教育部重点实验室, 上海 200092;
2. 上海市政工程设计研究总院(集团)有限公司, 上海 200092;
3. 同济大学 地下建筑与工程系, 上海 200092;
4. 河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098;
5. 江苏省江都水利工程管理处, 江苏 杨州 225200
Author(s):
YU Haitao12 ZHANG Zhengwei3 WU Yongxin4 DAI Chunxiang5
1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;
2. Shanghai Municipal Engineering Design Institute(Group) Company Limited, Shanghai 200092, China;
3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
4. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 200098, China;
5. Jiangsu Key Water Consenancy Project, Yangzhou 225200, China
关键词:
地下结构抗震设计变刚度隧道拟静力法敏感性分析
Keywords:
underground structuresseismic designvariable stiffness tunnelspseudo-static methodsensitivity analysis
分类号:
TU92
DOI:
10.13197/j.eeev.2018.04.70.yuht.011
摘要:
土结相互作用法在隧道纵向抗震分析中应用广泛,但现有方法不适用于变刚度隧道。本文根据隧道的动力响应特点提出力学假定,将变刚度隧道简化为处在均质各向同性土层中的两段半无限长弹性地基梁。通过求解隧道的位移微分方程,推导出变刚度隧道纵向地震响应的解析表达式,并引入位移相位角模拟行波效应,提出了变刚度隧道纵向抗震拟静力法。通过与有限元基准模型在相同计算参数下的结果对比,验证了本文方法的有效性和可行性。最后应用本文给出的解析公式进行了变刚度隧道参数敏感性分析,揭示了各种因素对变刚度隧道地震响应的影响规律。本文所提方法实用有效,可为今后变刚度隧道的抗震设计提供指导。
Abstract:
Soil structure interaction approach is widely used for longitudinal seismic analysis of tunnels, however it doesn’t apply to variable stiffness tunnels. A mechanical model for variable stiffness tunnels is proposed with assumptions based on its dynamic response characteristics, in which two semi-infinite elastic foundation beams in a homogeneous and isotropic soil are assumed to model behaviors of variable stiffness tunnels. An analytical solution for longitudinal seismic response of variable stiffness tunnels is derived by solving its displacement differential equations. A novel method, named variable stiffness tunnels longitudinal seismic pseudo-static method, is proposed with the displacement phase angle to model the traveling wave effect. A benchmark model, a finite element model of a variable stiffness tunnel, is used to calibrate the presented method. Comparison under the same parameters shows a high degree of consistency between the two, which verifies the efficiency and the feasibility of the presented method. Finally sensitivity analyses of parameters for variable stiffness tunnels are carried out using the proposed analytic formulas, and influences of parameters on variable stiffness tunnels’ seismic response are revealed. The proposed method is pragmatic and effective, which is guidable to seismic design of future variable stiffness tunnels.

参考文献/References:

[1] Anastasopoulos I, Gerolymos N, Drosos V, et al. Nonlinear response of deep immersed tunnel to strong seismic shaking[J]. Journal of Geotechnical & Geoenvironmental Engineering, 2007, 133(9):1067-1090.
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[3] Stamos A A, Beskos D E. 3-D seismic response analysis of long lined tunnels in half-space[J]. Soil Dynamics & Earthquake Engineering, 1996, 15(2):111-118.
[4] Park D, Sagong M, Kwak D Y, et al. Simulation of tunnel response under spatially varying ground motion[J]. Soil Dynamics & Earthquake Engineering, 2009, 29(11/12):1417-1424.
[5] Yu H T, Yuan Y, Bobet A. Multiscale method for long tunnels subjected to seismic loading[J]. International Journal for Numerical & Analytical Methods in Geomechanics, 2013, 37(4):374-398.
[6] Yu H, Yuan Y, Qiao Z, et al. Seismic analysis of a long tunnel based on multi-scale method[J]. Engineering Structures, 2013, 49(2):572-587.
[7] Li P, Song E X. Three-dimensional numerical analysis for the longitudinal seismic response of tunnels under an asynchronous wave input[J]. Computers & Geotechnics, 2015, 63:229-243.
[8] Hashash Y M A, Hook J J, Schmidt B, et al. Seismic design and analysis of underground structures[J]. Tunnelling & Underground Space Technology, 2001, 16(4):247-293.
[9] 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.
[10] 川岛一彦.地下构筑物の耐震设计[M].日本:鹿岛出版会, 1994. Kawajima K. Aseismic design of underground structure[M].Japan:Kajima Institute Publishing Co., Ltd. 1994.
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备注/Memo

备注/Memo:
收稿日期:2018-03-07;改回日期:2018-05-23。
基金项目:国家重点研发计划项目(2017YFC1500703);国家自然科学基金项目(51678438,51778487);上海市青年科技启明星计划资助(17QC1400500);上海市科学技术委员会(16DZ1200302,16DZ1201904,18DZ1205103)
作者简介:禹海涛(1983-),男,副教授,博士,主要从事地下结构动力学研究.E-mail:yuhaitao@tongji.edu.cn
更新日期/Last Update: 1900-01-01