Volume 8, Issue 4 (3-2015)
2015, 8(4): 2389-2412 |
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shareghi A, Amelmelsak M, Sohrabi Bidar A. Evaluation of Earthquake Waves Amplification Due to Trapezoidal Hill by 1D and 2D Time Domain Analysis. Journal of Engineering Geology 2015; 8 (4) :2389-2412
URL: http://jeg.khu.ac.ir/article-1-427-en.html
URL: http://jeg.khu.ac.ir/article-1-427-en.html
1- urmia university , arash_shareghi@yahoo.com
Abstract: (7801 Views)
Evaluation of strong ground motion up beneath the construction is important in both geotechnical engineering (site effect) and earthquake engineering aspects (analysis of earth behavior). The common methods of microzonation in geotechnical engineering are based on one dimensional dynamic analysis, in which ground surface is assumed to be horizontal. However in many cases, because of variety of topography conditions, recorded responses are different on the top of hills and their corners. In this study, FLAC 2D software, as finite difference software, is used to analysis the trapezoidal hill with different shape ratios. These topography models are analyzed by far field earthquake records, and their dimensionless amplification ratios are compared with the obtained results of one dimensional analysis. Assessment of these two analyses methods in some points on the topography and around it, demonstrated considerable differences that show the necessity of two dimensional analysis in earthquake geotechnical engineering.
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