CHANGE OF DYNAMIC PROPERTIES OF GROUND BEFORE AND AFTER THE GREAT EAST JAPAN EARTHQUAKE
In this study,changes of seismic motion in a developed residential site in Sendai-City Japan before and after the Groat East Japan Earthquake are mentioned.That is because the seismic motion character of fill ground may change before and after this large earthquake because of the fill ground damages.We observed earthquake records at a residential development which has numerous zones of cut and fill from the year 2007.The instrumental seismic intensity and the Fourier spectral ratio of acceleration were arranged using 33 earthquake records.As a result,at the cut area,observed seismic intensity was smaller than the fill area,on the whole.After the Great East Japan Earthquake,at almost all sites,the difference of instrumental seismic intensity against a base site became larger and at some site,the spectral ratio became larger at frequency of 4.5Hz to 6.0Hz than that of before the earthquake.
cut and fill reclaimed land dynamic property
GENKI SEO TOMOHIRO MORI MOTOKI KAZAMA KATSUYA MATSUSHITA
Department of Civil Engineering,Tohoku University,6-6-06 Aoba,Aramaki,Aoba-ku,Sendai,Miyagi,Japan Misawa Homes Institute of Research and Development Co.,Ltd.,1-1-19 Takaidonishi,Suginami-ku,Toukyou,
国际会议
5th China-Japan Geotechnical Symposium(第五届中日岩土工程学术会议)
成都
英文
360-367
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）