四川泸定MS 6.8级地震作用下大岗山拱坝实测动力反应分析

doi:10.13722/j.cnki.jrme.2023.0112

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摘要为研究高拱坝地震动力响应规律，以四川泸定MS 6.8级地震中，距震中21 km、坝高210 m的大岗山拱坝实测地震波形为基础，采用时域及频谱分析方法，分析其地震反应特性和规律。结果表明，在泸定地震主震激励下，拱坝顺河向峰值加速度(PGA)为586.63 cm/s2(6#坝段坝顶)，基岩顺河向PGA为229.18 cm/s2，加速度分布总体表现为顺河向大于横河向及垂直向，坝体大于两岸抗力体。大坝动力响应以顺河向最为显著，随高程增加，动力放大效应逐渐增强，最大放大系数达到4.2(6#坝段坝顶)。频谱分析结果表明，本次地震顺河向主频率在1.73 Hz左右，大坝1 081 m以上高程顺河向主频在1.52～1.75 Hz，与大坝模态频率接近，这是大坝有强烈震感的原因之一。结合近年典型地震大坝动力响应分析，震级大、震中距离远的地震更易激发出大坝低频动态特征。相关成果可为震后大坝安全评估、高拱坝抗震设计及研究提供参考。

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	江德军1
	黄会宝1
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	齐耀光3

关键词 ：水利工程, 泸定地震, 大岗山拱坝, 强震监测, 动力反应

Abstract：In order to study the seismic dynamic response law of high arch dams，based on the measured seismic waveform of Dagangshan arch dam with a height of 210 m and a distance of 21 km from the epicenter in the Sichuan Luding MS 6.8 earthquake，the seismic response characteristics and laws are analyzed by time domain and spectrum analysis methods. The results show that under the main shock excitation of the Luding earthquake，the peak acceleration(PGA) of the arch dam along the river is 586.63 cm/s2(#6 dam crest)，and the PGA of the bedrock along the river is 229.18 cm/s2. The acceleration distribution is generally greater than the horizontal and vertical directions，and the dam body is greater than the resistance body on both sides. The dynamic response of the dam is the most significant along the river. As the elevation increases，the dynamic amplification effect gradually increases，and the maximum amplification factor reaches 4.2 times(#6 dam crest).The results of spectrum analysis show that the main frequency of the earthquake is about 1.73 Hz，and the main frequency of the dam above 1 081 m is between 1.52 and 1.75 Hz，which is close to the modal frequency of the dam. This is one of the reasons why the dam has a strong sense of earthquake. Combined with the dynamic response analysis of typical earthquake dams in recent years，earthquakes with large magnitude and far epicenter distance are more likely to stimulate the low-frequency dynamic characteristics of dams. The relevant results can provide reference for post-earthquake dam safety assessment，seismic design and research of high arch dams.

Key words： hydraulic engineering')" href="#">

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引用本文:

江德军1，黄会宝1，2，齐耀光3. 四川泸定MS 6.8级地震作用下大岗山拱坝实测动力反应分析[J]. 岩石力学与工程学报, 2024, 43(1): 59-74.
JIANG Dejun1，HUANG Huibao1，2，QI Yaoguang3. Dynamic response analysis of Dagangshan arch dam under the Sichuan Luding Ms 6.8 earthquake. , 2024, 43(1): 59-74.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2023.0112 或 http://rockmech.whrsm.ac.cn/CN/Y2024/V43/I1/59

[8]	涂劲，李德玉，陈厚群，等. 大岗山拱坝-地基体系整体抗震安全性研究[J]. 水利学报，2011，42(2)：152-159.(TU Jin，LI Deyu，CHEN Houqun，et al. Study on integral seismic safety of Dagangshan arch dam-foundation system[J]. Journal of Hydraulic Engineering，2011，42(2)：152-159.(in Chinese))
[15]	易桂喜，龙锋，梁明剑，等. 2022年9月5日四川泸定MS 6.8地震序列发震构造[J]. 地球物理学报，2023，66(4)：1 363-1 384.(YI Guixi，LONG Feng，LIANG Mingjian，et al. Seismogenic structure of the 5 September 2022 Sichuan Luding Ms6.8 earthquake sequence[J]. Chinese Journal of Geophysics，2023，66(4)：1 363-1 384.(in Chinese))
[17]	黄会宝，陈刚，江德军. 四川泸定MS 6.8级地震大岗山特高拱坝变形特征分析[J]. 水利学报，2023，54(5)：599-609.(HUANG Huibao，CHEN Gang，JIANG Dejun. Deformation characteristics analysis of Dagangshan super high arch dam in Sichuan Luding MS 6.8 earthquake[J]. Journal of Hydraulic Engineering，2023，54(5)：599-609.(in Chinese))
[18]	郭永刚，涂劲，陈厚群. 高拱坝伸缩横缝间布设阻尼器对坝体地震反应影响的研究[J]. 世界地震工程，2003，(3)：44-49.(GUO Yonggang，TU Jin，CHEN Houqun. Study on effect of damper between contraction joints on seismic response of the high arch dam[J]. World Earthquake Engineering，2003，(3)：44-49.(in Chinese))
[6]	秦礼君，陈健云，徐强，等. 高拱坝抗震安全评价指标研究——以白鹤滩拱坝为例[J]. 水利学报，2022，53(9)：1 116-1 126.(QIN Lijun，CHEN Jianyun，XU Qiang，et al. Study on seismic safety evaluation index of the high arch dam：a case study of Baihetan arch dam[J]. Journal of Hydraulic Engineering，2022，53(9)：1 116-1 126. (in Chinese))
[16]	张喆，房立华，许力生. 2022年四川泸定MS 6.8地震震源基本特征[J]. 地球物理学报，2023，66(4)：1 397-1 408.(ZHANG Zhe，FANG Lihua，XU Lisheng. Primary source characteristics of the 2022 Sichuan Luding MS 6.8 Earthquake[J]. Chinese Journal of Geophysics，2023，66(4)：1 397-1 408.(in Chinese))
[4]	陈厚群，徐泽平，李敏. 汶川大地震和大坝抗震安全[J]. 水利学报，2008，39(10)：1 158-1 167.(CHEN Houqun，XU Zeping，LEE Min. Wenchuan Earthquake and seismic safety of large dams[J]. Journal of Hydraulic Engineering，2008，39(10)：1 158-1 167.(in Chinese))
[14]	李思嘉，徐敬武，吴灌洲，等. 大渡河大岗山水电站枢纽工程蓄水安全鉴定设计自检报告(第三分册工程地质)[R]. 成都：中国电建集团成都勘测设计研究院有限公司，2022．(LI Sijia，XU Jingwu，WU Guanzhou，et al. Self-inspection report on water storage safety appraisal design of Dagangshan hydropower station hub project on Dadu River(engineering geology in book III)[R]. Chengdu ：China Electric Power Construction Group Chengdu Survey and Design Institute Co.，Ltd.，2022.(in Chinese))
[1]	程立，吴亚军，魏志远. 特高拱坝建设管理与施工技术总结与展望[J]. 水力发电，2020，46(10)：73-77.(CHENG Li，WU Yajun，WEI Zhiyuan. Summary and prospect of construction management and technology of super-high arch dams[J]. Water Power，2020，46(10)：73-77.(in Chinese))
[3]	涂劲，李德玉，张翠然，等. 汶川地震中沙牌拱坝震情验证研究[J]. 水利学报，2016，47(5)：656-662.(TU Jin，LI Deyu，ZHANG Cuiran，et al. Verification of the seismic performance of Shapai arch dam during Wenchuan earthquake[J]. Journal of Hydraulic Engineering，2016，47(5)：656-662.(in Chinese))
[5]	范书立，陈健云，王建涌，等. 高拱坝振动台地震破坏试验研究及数值仿真[J]. 岩石力学与工程学报，2009，28(3)：467-474.(FAN Shuli，CHEN Jianyun，WANG Jianyong，et al. Experimental study and numerical simulation for seismic failure of high arch dam on shaking table[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(3)：467-474.(in Chinese))
[7]	林鹏，王仁坤，李庆斌，等. 汶川8.0级地震对典型高坝结构安全的影响分析[J]. 岩石力学与工程学报，2009，28(6)：1 261-1 269. (LIN Peng，WANG Renkun，LI Qingbin，et al. Effect analysis of structural safety of typical large dams in Wenchuan 8.0 earthquake[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(6)：1 261-1 269.(in Chinese))
[10]	马克，金峰，唐春安，等. 基于微震监测的大岗山高拱坝坝踵蓄水初期变形机制研究[J]. 岩石力学与工程学报，2017，36(5)：1 111-1 121.(MA Ke，JIN Feng，TANG Chun?an，et al. Deformation mechanism of the dam heel of Dagangshan high arch dam based on microseismic monitoring during initial impoundment[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(5)：1 111-1 121. (in Chinese))
[2]	李静，陈健云，徐强，等. 高拱坝抗震性能评价指标研究[J]. 水利学报，2015，46(1)：118-124.(LI Jing，CHEN Jianyun，XU Qiang，et al. Study on index of seismic performance evaluation of arch dam[J]. Journal of Hydraulic Engineering，2015，46(1)：118-124.(in Chinese))
[12]	钟菊芳，温世亿，胡晓. 沙牌坝址基岩场地地震动输入参数研究[J]. 岩土力学，2011，32(2)：387-392.(ZHONG Jufang，WEN Shiyi，HU Xiao. Study of ground motion input parameters of Shapai dam rock site[J]. Rock and Soil Mechanics，2011，32(2)：387-392. (in Chinese))
[9]	金爱云，王进廷，潘坚文. 基于主余震序列的高拱坝极限抗震能力损失研究[J]. 振动与冲击，2022，41(3)：82-89. (JIN Aiyun，WANG Jinting，PAN Jianwen. Ultimate seismic capacity loss of high arch dam based on mainshock-aftershock sequences[J]. Journal of Vibration and Shock，2022，41(3)：82-89.(in Chinese))
[11]	郭胜山，李德玉，涂劲，等. 汶川地震中沙牌拱坝坝体分缝开裂分析[J]. 水力发电学报，2014，33(6)：174-180.(GUO Shengshan，LI Deyu，TU Jin，et al. Crack analysis of Shapai arch dam joints under the Wenchuan earthquake[J]. Journal of Hydroelectric Engineering，2014，33(6)：174-180.(in Chinese))
[19]	罗秉艳，徐艳杰，王光纶. 大岗山拱坝考虑阻尼器抗震措施的非线性动力反应分析[J]. 水力发电学报，2007，(1)：67-70.(LUO Bingyan，XU Yanjie，WANG Guanglun. Nonlinear dynamic analysis of Dagangshan arch dam with considering damper reinforcement[J]. Journal of Hydroelectric Engineering，2007，(1)：67-70.(in Chinese))
[13]	邵敬东，黎满林，刘翔，等. 高地震区大岗山水电站拱坝设计[J]. 水力发电，2015，41(7)：34-38.(SHAO Jingdong，LI Manlin，LIU Xiang，et al. Design of Dagangshan arch dam located in high seismic intensity area[J]. Water Power，2015，41(7)：34-38.(in Chinese))