Review on the study of topographic effect on seismic ground motion |
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| Authors: | Hong Zhou |
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| Affiliation: | Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
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| Abstract: | Topographic effect study is a very important research topic in seismology, seismic engineering,earthquake engineering, engineering earthquake construction and engineering seismology. This paper focuses on its present development status. Post-earthquake investigation has found that the existence of topography caused more serious earthquake damage. The actual seismographs also recorded the topographic amplification effect of 6 to 7 times and even more than 10 times. Numerical simulation is an important technique to study topographic effect, which complements the lack of observed records. However researches on 3-D topographic effect are not enough and need to be studied deeper. To find the main influence factors and the quantitative relationship between topography and ground motion are required very urgently. Obviously the achievements not only can be applied in the earthquake resistant design, but also can provide the quantitative pre-earthquake disaster prediction and quantitative post-earthquake disaster evaluation. |
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| Keywords: | topographic effect to earthquakes numerical simu-lation of ground motion quantitative mathematical model |
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