三维衰减构造在地动峰值之推算.PDF

立 劉龍 逸 (Q)量量量 率類 不理 路 量 路 , 度 , 利 (例Chen et al., 1996; Chen, 1998) 度例( Rau Wu (1995) Ma et al. (1996) ) 更 數料蘭 立 精率 1 度 is a dimensionless quantity which measures the amount of energy dissipated per radian as sei smic waves propagate. varies with the composition of the material and its physical condition. The amount of sei smic energy received in building strictly depends on the anelasticity of the media that the seismic wave traveling through. Therefore, the seismic attenuation factor of the subsurface material is the parameters for estimating the displacement near the ground. The inversion technique that has been developed already by the authors (Chen et al., 1996; Chen, 1998) will be used in this proposal. Two better 3-D velocity models inferred by Rau Wu (1995) and Ma et al. (1996) will be taken into consideration as a reference for the calculation of the ray tracing. In this proposal, we will use the new high-quality data recorded by CWBSN and TSMIP. In the first year, we will focus the target area on the Ilan plain under where the detailed three-dimensional attenuation structures will be converted. Based on these structures and site effect, the estimated peak ground acceleration of any located earthquake in this area can be evaluated. 145 了 路 料 立 立不 來 錄來 不 狀 度 歷年來利 來度 例( Rau Wu (1995) Ma et al. (1996) ) 例(