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논문 기본 정보

자료유형
학술저널
저자정보
Liu, Xinrong (School of Civil Engineering, Chongqing University) Jin, Meihai (School of Civil Engineering, Chongqing University) Li, Dongliang (School of Civil Engineering, Chongqing University) Hu, Yuanxin (School of Civil Engineering, Chongqing University) Song, Jianxue (School of Civil Engineering, Chongqing University)
저널정보
테크노프레스 Geomechanics & engineering Geomechanics & engineering 제13권 제3호
발행연도
2017.1
수록면
411 - 429 (19page)

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A Spectral Element Method for 3D seismic wave propagation simulation is derived based on the three-dimensional fluctuating elastic dynamic equation. Considering the 3D real terrain and the attenuation characteristics of the medium, the topographic effect of Wenchuan earthquake is simulated by using the Spectral Element Method (SEM) algorithm and the ASTER DEM model. Results show that the high PGA (peak ground acceleration) region was distributed along the peak and the slope side away from the epicenter in the epicenter area. The overall distribution direction of high PGA and high PGV (peak ground velocity) region is parallel to the direction of the seismogenic fault. In the epicenter of the earthquake, the ground motion is to some extent amplified under the influence of the terrain. The amplification effect of the terrain on PGA is complicated. It does not exactly lead to amplification of PGA at the ridge and the summit or attenuation of PGA in the valley.

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