局部成层的海域岛礁场地地震反应分析

摘要
图/表
参考文献(33)
相关文章 (15)

全文: PDF (4614 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要综合考虑岛礁与海水的动力耦合作用、固、液介质截断边界处的波动辐射效应和地震波动输入问题，建立二维局部成层的岛礁-海水系统地震反应分析模型，通过与陆域水平成层场地和斜坡平台场地的对比研究，分析岛礁场地地震动场的分布规律。结果表明，岛礁场地的地震反应幅值与水平成层场地相比明显放大，其中礁顶中点附近加速度峰值放大系数可达1~1.5，角点附近可达1.5~2。向海坡坡度和礁坪宽度等地形因素及海水的动力耦合作用均对岛礁场地的地震反应有显著影响，采用一维土层和斜坡平台场地地震反应分析难以全面地刻画岛礁场地真实的地震动场分布特征。对于重要的岛礁工程场地，有必要进行可反映其真实力学特征的岛礁-海水耦合动力分析。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	宝鑫1
	刘晶波1
	王东洋2
	李述涛1
	王菲1

关键词 ：岛礁, 海水, 场地地震反应, 地震波动输入, 人工边界, 流固耦合

Abstract：Here, comprehensively considering dynamic coupling action between reef and seawater, wave radiation effects at cutoff boundaries of solid and fluid media as well as seismic wave input, a 2-D seismic response analysis model for local layered reef-seawater system was established to study seismic field distribution laws of reef site by comparing with horizontal stratification site and slope platform site in land area.Results showed that seismic response amplitude of reef site is significantly amplified compared with that of horizontal layered site, the acceleration peak amplification coefficient near the middle point of reef top can reach 1-1.5, and that near the corner point can reach 1.5-2; topographic factors, such as, seaward slope and reef flat width, and reef-seawater dynamic coupled effect have significant influences on seismic response of island reef site, seismic response analyses of a 1-D soil layer and slope platform site are difficult to fully describe real distribution characteristics of seismic field of island reef site; for important reef engineering sites, it is necessary to perform a reef-seawater coupled dynamic analysis for the purpose of reflecting their real mechanical characteristics.

Key words： reef seawater site seismic response seismic wave input artificial boundary fluid-solid interaction

收稿日期: 2019-05-29 出版日期: 2020-10-28

引用本文:

宝鑫1，刘晶波1，王东洋2，李述涛1，王菲1. 局部成层的海域岛礁场地地震反应分析[J]. 振动与冲击, 2020, 39(21): 55-64.
BAO Xin1, LIU Jingbo1, WANG Dongyang2, LI Shutao1, WANG Fei1. Seismic response analysis of local layered sea reef site. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(21): 55-64.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I21/55

[1] 胡进军, 徐长琦, 谢礼立,等. 南海岛礁场地地震稳定性研究中的关键问题探讨[J]. 地震工程学报, 2018, 40(2):92-100.
HU Jinjun, XU Changqi, XIE Lili. et al. A preliminary study of seismic effects of typical island and reef[J]. Earthquake Engineering and Engineering Dynamics, 2018, 40(2):92-100.
[2] 黄润秋, 李为乐. “5.12”汶川大地震触发地质灾害的发育分布规律研究[J]. 岩石力学与工程学报, 2008, 27(12):2585-2592.
HUANG Runqiu, LI Weile. Research on development and distribution rules of geohazards induced by Wenchuan earthquake on 12th May, 2008[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(12):2585-2592.
[3] XIE Jujun, ZIMMARO Paolo, LI Xiaojun, et al. Rupture Directivity Effects on Strong Ground Motion during the 15 April 2016 Mw 7.0 Kumamoto Earthquake in Japan[J]. Bulletin of the Seismological Society of America, 2017,107(3):1265-1276.
[4] 李伟华, 刘清华, 赵成刚. 饱和多孔介质三维时域黏弹性人工边界与动力反应分析的显式有限元法[J]. 地球物理学报, 2010, 53(10):2460-2469.
LI Weihua, LIU Qinghua, ZHAO Chenggang. Three-dimensional viscous-spring boundaries in time domain and dynamic analysis using explicit finite element method of saturated porous medium[J]. Chinese Journal of Geophysics, 2010, 53(10):2460-2469
[5] 高智能, 卓卫东, 谷音. SH波斜入射时有阻尼成层介质自由场的一维化时域算法[J]. 振动与冲击, 2017, 36(16):37-43.
GAO Zhineng, ZHUO Weidong, GU Yin. A 1D time-domain method for free field motion in layered media with damping under obliquely incident SH wave[J]. Journal of Vibration and Shock, 2017, 36(16):37-43.
[6] 张希萌, 齐辉, 项梦, 等. 半空间双相介质垂直界面裂纹附近圆形衬砌和半圆凹陷对SH波的散射[J]. 振动与冲击, 2017, 36(20):142-150.
ZHANG Ximeng, QI Hui, XIANG Meng, et al. Scattering of SH-wave by a circular lining and a semi-circular canyon near vertical interface crack in the bi-material half space[J]. Journal of Vibration and Shock, 2017, 36(20):142-150.
[7] 王铭锋, 郑傲, 章文波. 局部山体地形对强地面运动的影响研究[J]. 地球物理学报, 2017, 60(12):4655-4670.
WANG Mingfeng, ZHENG Ao, ZHANG Wenbo. Effect of local moutain topography on strong ground motion[J]. Chinese Journal of Geophysics, 2017, 60(12):4655-4670.
[8] 章小龙, 李小军, 周正华, 等. 三维复杂山谷地形SV波垂直输入地震反应分析[J]. 地球物理学报, 2017, 60(7):2779-2790.
ZHANG Xiaolong, LI Xiaojun, ZHOU Zhenghua, et al. The seismic response analysis of three-dimensional Canyon complex topography under incident SV seismic waves[J]. Chinese Journal of Geophysics, 2017, 60(7):2779-2790.
[9] 丁海平, 朱重洋, 于彦彦. P,SV波斜入射下凹陷地形地震动分布特征[J]. 振动与冲击, 2017, 36(12):88-98.
DING Haiping, ZHU Chongyang, YU Yanyan. Characteristic of ground motions of a canyon topography under inclined P and SV waves[J], Journal of Vibration and Shock, 2017, 36(12):88-98.
[10] 胡进军, 李天男, 谢礼立, 等. 脉冲型地震动作用下典型珊瑚岛礁的场地放大研究[J]. 世界地震工程, 2017, 33(4):1-10.
HU Jinjun, LI Tiannan, XIE Lili, et al. Seimic response analysis of coral reef under pulse-like ground motions[J], World Earthquake Engineering, 2017, 33(4):1-10.
[11] 胡进军, 徐长琦, 李琼林, 等. 典型岛礁场地的地震效应初探[J]. 地震工程与工程振动, 40(2):92-100.
HU Jinjun, XU Changqi, XIE Lili, et al. Key issues in seismic stability analysis of reef sites in South China Sea[J]. China Earthquake Engineering Journal, 2018, 40(2):92-100.
[12] 陈国兴, 朱翔, 赵丁凤, 等. 珊瑚岛礁场地非线性地震反应特征分析[J]. 岩土工程学报, 2018, 41(3):405-413.
CHEN Guoxing, ZHU Xiang, ZHAO Fengding, et al. Nonlinear seismic response characteristics of a coral island site[J]. Chinese Journal of Geotechnical Engineering, 2018, 41(3):405-413.
[13] 单华刚, 汪稔, 周曾辉. 南沙群岛永暑礁工程地质特性[J]. 海洋地质与第四纪地质, 2000, 20(3):31-36.
SHAN Huagang, WANG Ren, ZHOU Zenghui. Yongshu Reef engineering geology of Nansha Islands[J]. Marine Geology and Quaternary Geology, 2000, 20(3):31-36.
[14] MENG Qingshan, YU Kefu, WANG Ren, et al. Characteristics of Rocky Basin Structure of Yongshu Reef in the Southern South China Sea[J]. Marine Georesources and Geotechnology, 2014, 32(4):307-315.
[15] 宝鑫, 刘晶波, 韩鹏飞,等. 流体人工边界在海域场地地震分析中的应用[J]. 地震工程与工程震动, 2018, 38(S2):95-105.
BAO Xin, LIU Jingbo, HAN Pengfei, et al. Application of fluid medium artificial boundary in seismic analysis of ocean engineering site[J]. Earthquake Engineering and Engineering Dynamics, 2018, 38(S2):95-105.
[16] 宝鑫, 刘晶波, 王东洋,等. P波垂直入射下海域岛礁场地动力反应分析[C]//. 第27届全国结构工程学术会议论文集（第Ⅱ册）, 2018.
BAO Xin, LIU Jingbo, WANG Dongyang, et al. Seismic response analysis of offshore reef site under incident P wave[C]//. Proceedings of the 27th Conference on Structural Engineering (Volume II), 2018.
[17] LIU Jingbo, BAO Xin, WANG Dongyang, et al. Seismic response analysis of the reef-seawater system under incident SV wave[J]. Ocean Engineering, 2019, 180:199-210.
[18] 刘晶波, 谭辉, 宝鑫,等. 土-结构动力相互作用分析中基于人工边界子结构的地震波动输入方法[J]. 力学学报, 2018, 50(1):32-43.
LIU Jingbo, TAN Hui, BAO Xin, et al. The seismic wave input method for soil-structure dynamic interaction analysis based on the substructure of artificial boundaries[J]. Chinese Journal of Theoretical and Applied Mechanics, 2018, 50(1):32-43.
[19] 谭辉, 宝鑫, 王东洋, 等. 基于人工边界子结构的地震波动输入方法的简化[C]//. 第27届全国结构工程学术会议论文集（第Ⅱ册）, 2018.
TAN hui, BAO Xin, WANG Dongyang, et al. Simplification of the seismic wave input method based on the substructure of artificial boundaries[C]//. Proceedings of the 27th Conference on Structural Engineering (Volume II), 2018.
[20] 刘晶波, 宝鑫, 谭辉,等. 波动问题中流体介质的动力人工边界[J]. 力学学报, 2017, 49(6): 1418-1427.
LIU Jingbo, BAO Xin, TAN Hui, et al. Dynamical artificial boundary for fluid medium in wave motion problems[J]. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(6): 1418-1427.
[21] 刘晶波, 谷音, 杜义欣. 一致粘弹性人工边界及粘弹性边界单元[J]. 岩土工程学报, 2006, 28(9):1070-1075.
LIU Jingbo, GU Yin, DU Xiuli. Consistent viscous-spring artificial boundaries and viscous-spring boundary elements[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(9):1070-1075.
[22] BIELAK Jacobo, LOUKAKIS Kostas, HISADA Yoshiaki, et al. Domain reduction method for three-dimensional earthquake modeling in localized regions, part I: theory[J]. Bulletin of the Seismological Society of America, 2003,93(2):817-824..
[23] YOSHIMURA Chiaki, BIELAK Jacobo, HISADA Yoshiaki, et al. Domain reduction method for three-dimensional earthquake modeling in localized regions, part II: verification and applications[J]. Bulletin of the Seismological Society of America, 2003,93(2):825-841.
[24] LIU Jingbo, LU Yandong. A direct method for analysis of dynamic soil-structure interaction based on interface idea[J]. Developments in Geotechnical Engineering, 1998, 83:261–276.
[25] 陈少林, 柯小飞, 张洪翔. 海洋地震工程流固耦合问题统一计算框架[J]. 力学学报, 2019, 51(2):594-606.
CHEN Shaolin, KE Xiaofei, ZHANG Hongxiang. A unified computational framework for fluid-solid coupling in marine earthquake engineering[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(2):594-606.
[26] 宝鑫, 刘晶波. 考虑流-固耦合效应的含液容器动力响应有限元分析方法[J]. 核动力工程, 2017, 38(2):111-114.
BAO Xin, LIU Jingbo. Dynamic finite element analysis methods for liquid container considering fluid-structure interaction[J]. Nuclear Power Engineering, 2017, 38(2):111-114.
[27] 孙宗勋, 卢博. 南沙群岛珊瑚礁灰岩弹性波性质的研究[J]. 工程地质学报, 1999, 7(2):175-180.
SUN Zongxun, LU Bo. Elastic wave properties of coral reef rock in Nansha islands[J]. Journal of Engineering Geology, 1999, 7(2):175-180.
[28] 杜修力. 工程波动理论与方法[M]. 科学出版社, 2009: 215-216.
DU Xiuli. Theories and methods of wave motion for engineering[M]. China Science Press, 2009: 215-216.
[29] 孙宗勋, 詹文欢, 朱俊江. 南沙群岛永暑礁岩体稳定性评价[J]. 海洋地质与第四纪地质, 2003, 23(4):9-14.
SUN Zongxun, ZHAN Wenhuan, ZHU Junjiang. Rockmass stability of Yongshu Reef, Nansha Islands[J]. Marine Geology and Quaternary Geology, 2003, 23(4):9-14.
[30] 詹文欢, 刘以宣. 南海南部活动断裂与灾害性地质初步研究[J]. 海洋地质与第四纪地质, 1995, 15(3):1-9.
ZHAN Wenhuan, LIU Yixuan. Preliminary analysis of the active fault and hazard geology in the south of the South China Sea[J]. Marine Geology and Quaternary Geology, 1995, 15(3):1-9
[31] Hudson J A , Knopoff L . Transmission and reflection of surface waves at a corner: 2. Rayleigh waves (theoretical)[J]. Journal of Geophysical Research, 1964, 69(2):281-289.
[32] 周传荣. 一些特殊地形对SH波传播的影响[J]. 地震学报, 1983, 5(1):57-66.
ZHOU Chuanrong. Some special topography: their influences on the propagation of SH-waves[J]. Acta Seismologica Sinica, 1983, 5(1):57-66.
[33] 荣棉水, 李小军, 吕悦军,等. 平台地形对地震地面运动特征周期值的影响[J]. 中国地震, 2009, 25(2):178-185.
RONG Mianshui, LI Xiaojun, LU Yuejun, et al. Effect of Protruding Topography on Characteristic Period of Ground Motion[J]. Earthquake Research in China, 2009, 25(2):178-185.