基于谱比法的高铁地震台站场地分类初探

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (24) : 28-33.

论文

基于谱比法的高铁地震台站场地分类初探

黄俊1,2，陈志高1,2，杨江1,2,夏界宁1,2

作者信息 +

Primary investigation on site classification for high speedrailway seismic stations in China using a spectral ratio method

HUANG Jun1,2,CHEN Zhigao1,2,YANG Jiang1,2,XIA Jiening1,2

Author information +

文章历史 +

摘要

我国高铁地震台站未进行场地分类，限制了高铁强震记录的使用范围。利用2016年青海门源6.4级地震兰新高铁地震监测台站记录到的主余震强震数据，计算余震峰值加速度小于35 cm/s2的平均谱比曲线作为场地线性反应参考，评估峰值加速度超过35 cm/s2的强震记录对应台站场地的非线性程度，从而筛选出用于台站场地分类的强震记录，随后采用中国强震台站经验场地分类方法完成了4 个高铁地震台站的场地分类，并证明同一台站近远高铁监测点的场地分类结果相同，这表明我国高铁地震台站建设方案能够有效降低双监测点在场地条件上差异，具有合理性。最后分析了同一台站近远高铁监测点主震强震动记录相差较大的原因。

Abstract

High-speed railway seismic stations in China had not carried out site classification, which limits the use of strong earthquake records.The mianshock-aftershock of Menyuan Ms6.4 earthquake were record by Lanzhou-Xinjiang high-speed railway seismic statons.The average curve of aftershocks (Peak Ground Acceleration, PGA<35 cm/s2) were calculated as the linear site response reference.The seismic station site nonlinear site response degree was assessed to screen out strong earthquake records (PGA>35 cm/s2) that were used for sites classification.Then four high-speed railway seismic stations were finished site classification by using the empirical site classification scheme for National Strong Motion Observation Network System station.It shows that the near and far high-speed rail monitoring points are identified as the same site classification, which proves the high-speed railway seismic station construction method in China is reasonable.Finally, the reason of the larger PGA difference of the two monitoring points in mainshock was analyzed.

导出引用

黄俊1,2，陈志高1,2，杨江1,2,夏界宁1,2. 基于谱比法的高铁地震台站场地分类初探[J]. 振动与冲击, 2019, 38(24): 28-33

HUANG Jun1,2,CHEN Zhigao1,2,YANG Jiang1,2,XIA Jiening1,2. Primary investigation on site classification for high speedrailway seismic stations in China using a spectral ratio method[J]. Journal of Vibration and Shock, 2019, 38(24): 28-33

参考文献

[1] TB 10621-2009, 高速铁路设计规范[S].北京:中国铁道出版社,2010.

TB 10621-2009, Code for Design of High Speed Railway[S].Beijing: China Railway Publishing House Co .,Ltd,2010.

[2]陈志高,黄俊.青海门源6.4级地震兰新高铁沿线强震数据分析[J].大地测量与地球动力学,2017,37(09):

983-986+990.

Chen Zhigao, Huang Jun.Strong motion data analysis for Lanzhou-Xinjinag high-speed railway from

Menyuan, Qinghai Ms6.4 Earthquake [J] .Journal of Geodesy and Geodynamics, 2017, 37(09):983-986+990.

[3] GB50011-2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.

GB 50011-2010, Code for seismic design of buildings[S]. Beijing: China Building Industry Press, 2010.

[4]NAKAMURA Y.A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface [J].Railway Technical Research Institute, 1989,30(1):25–33.

[5]ZHAO J X. An empirical site-classification method for strong-motion stations in Japan using H/V response

ratio [J].Bulletin of the Seismological Society of America,2006,96(3):914–925.

[6]Ji Kun, Ren Yefei, Wen Ruizhi.Site classification for National Strong Motion Observation Network System (NSMONS) stations in China using an empirical H/V spectral ratio method [J]. Journal of Asian Earth Sciences, 2017,147:79:94.

[7]Noguchi S and Sasatani T.Quantification of degree of nonlinear site response[C]. 14th World Conference on Earthquake Engineering, Beijing, China. 2008.

[8]Wen K L, Huang J Y, Chen C T,et al. Nonlinear site response of the 2010 Darfield, New Zealand, earthquake sequence[C]. 4th IASPEI/IAEE International Symposium: Effects of Surface Geology on Seismic Motion, Santa Barbara, California. 2012, 23-26.

[9]冀昆,基于H/V谱比法的场地特征研究[D].哈尔滨:中国地震局工程力学研究所, 2014.

Ji Kun.Estimation on site charateristic based on H/V spectral ratio method [D].Harbin: Institute of Engineering Mechanics, China Earthquake Administration, 2014.

[10]温瑞智，冀昆，任叶飞,王宏伟.基于谱比法的我国强震台站场地分类[J].岩石力学与工程学报,2015,34(06) 1236-1241.

Wen Ruizhi, Ji Kun,Ren Yefei, et al.Site Classification for strong earthquake stations in China using spectral ratio method [J]Chinese Journal of Rock Mechanics and Engineering, ,2015,34(06):1236-1241.

[11]姚鑫鑫,任叶飞,温瑞智.汶川地震强余震场地非线性反应[J].地震地磁观测与究,2017,38(02) :104-111.

Yao Xinxin, Ren Yefei, Wen Ruizhi. Identifi cation of the nonlinear site response during the Wenchuan aftershocks[J]. Seismological and Geomagnetic Observation and Research, 2017, 38(02):104-111.

[12]Rubinstein, J. L . Nonlinear Site Response in Medium Magnitude Earthquakes near Parkfield, California [J]. Bulletin of the Seismological Society of America, 2011, 101(1):275-286.