Spectral characteristics of earthquake input motion on the base rock

基岩地震输入运动的频谱特征

• 批准号: 10650460
• 负责人: SAWADA Yoshihiro
• 金额: $ 1.73万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650460/
• 关键词: earthquake; strong earthquake motion; shock wave; earthquake design motion; spectle; differential method; 強震観測

(1) Possibility of a shock wave on The Hogoken-nanbu EarthquakeTo make clear whether a shock wave had existed or not in seismic wave due to The Hogoken-nanbu Earthquake, the shock wave tests has been carried out regarding the representative strong motion seismographs and the acoustic level has examined when the shock arrived at ground surface. Consequently, it may be concluded that exist of shock wave is not realistic.(2) Applicability of 2-D wave simulation program using different method2-D simulation program for seismic wave propagation using different method was examined through the simulation of aftershock waves at the small Kaminokuni basin, Hokkaido. It was confirmed the surface wave produced at margin of basin was well simulated by this program.(3) Formulation of special characteristics on base rockObservation records at rock site during The Hogoken-nanbu Earthquake and The Kocaeli Earthquake were analyzed. The recurrent formula has been calculated for the velocity response spectra of each record and compared with the existing empirical design spectra. The results show the recurrent spectra at near the fault have very large amplitude in long range in comparison with the empirical those.

(1)为了弄清Hogoken-nanbu地震的地震波中是否存在冲击波，对具有代表性的强震仪进行了冲击波试验，并检查了冲击波到达地面时的声级。因此，可以得出结论，激波的存在是不现实的。(2)不同方法二维地震波模拟程序的适用性通过对北海道上国小盆地余震波的模拟，检验了不同方法二维地震波传播模拟程序的适用性。经验证，该程序能较好地模拟盆地边缘产生的面波。(3)分析了Hogoken-nanbu地震和Kocaeli地震期间岩石现场的观测记录。对每个记录的速度反应谱计算了递推公式，并与现有的经验设计谱进行了比较。结果表明，与经验谱相比，近断层处的回归谱在长范围内具有很大的振幅。

项目成果

H. Nagumo and T. Sasatani: "The characteristics of observed wave forms on the small Kaminokuni basin, Hokkaido, Japan"Proceedings of The 2nd International Symposium on ESG. Vol.2. 503-508 (1998)

H. Nagumo 和 T. Sasatani：“日本北海道上国小盆地观测到的波形特征”第二届 ESG 国际研讨会论文集。

Y. Sawada, et al.: "Examination of Engineering basement based on earthquake observation and deep ground structure"Proceedings of the 2nd International Symposium on ESG. Vol.2. 509-514 (1998)

Y. Sawada等：《基于地震观测和深层地面结构的工程地下室检验》第二届ESG国际研讨会论文集。

Y. Sawada, et al.: "Examination of engineering of baseball based on earthquake observation and deep ground structure"Proceedings of the 2nd International Symposium on ESG. Vol.2. 509-514 (1998)

Y. Sawada等：《基于地震观测和深层地面结构的棒球工程检验》第二届ESG国际研讨会论文集。

澤田義博: "兵庫県南部地震における衝撃的地震動の可能性"大加速度(速度)強震動の成因解釈と強振動-地震被害との相互関連性に関する研究,東大震研特定共同研究(B)報告書. 37-39 (1999)

泽田义弘：《兵库县南部地震中脉冲性地震动的可能性》大加速度（速度）强地震动的成因解释及强振动与震害的相关性研究，东京大学地震研究报告研究所特别联合研究（B）书37-39（1999）。

N.Nagumo and T.Sasatani: "The characteristics of observed waveforms on the small kaminokuni basin, Hokkido, Japan" The effects of surface geology on seismic motion. vol.2. 503-508 (1998)

N.Nagumo 和 T.Sasatani：“日本北海道小 kaminokuni 盆地观测到的波形特征” 地表地质对地震运动的影响。