| 砂土地震液化的改进进化遗传算法判别 |
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| 引用本文： | 王明华,柴贺军,刘汉超,董孝壁.砂土地震液化的改进进化遗传算法判别[J].地质灾害与环境保护,2000,11(4). |
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| 作者姓名： | 王明华 柴贺军 刘汉超 董孝壁 |
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| 摘 要： | 改进了进化遗传算法，提出了新的交叉算子和变异算子，使之具有更好的全局收敛能力。砂土液化是一种危害极大的地震破坏现象，其影响因素很多，选择地震烈度、砂土粒径、相对密度、标贯击数和有效正应力为判据，利用改进了的进化遗传算法建立了砂土地震液化的判别模型。与现场液化情况比较表明，改进进化遗传算法应用于砂土地震液化的判别效果良好。
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| 关 键 词： | 进化遗传算法 砂土地震液化 判别 |
THE DISCRIMINATION OF LIQUEFACTION OF SAND DURING EARTHQUAKE USING MODIFIED EVOLUTION GENETIC ALGORITHM |
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| WANG Ming-hua,CHAI He-jun,LIU Han-chao,DONG Xiao-bi.THE DISCRIMINATION OF LIQUEFACTION OF SAND DURING EARTHQUAKE USING MODIFIED EVOLUTION GENETIC ALGORITHM[J].Journal of Geological Hazards and Environment Preservation,2000,11(4). |
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| Authors: | WANG Ming-hua CHAI He-jun LIU Han-chao DONG Xiao-bi |
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| Abstract: | Based on Darwin's theory of evolution,new operators of crossover and mutation are presented in modified evolution genetic algorithm(EGA),which makes it obtain better global convergence. Liquefaction of sand during earthquake is a kind of greatly dangerous hazard and has relation to many facts. Using modified evolution genetic algorithm ,discrimination model is established according to earthquake intensity, soil diameter, relative density , standard penetration value, effective normal stress. Compared with the field conditions, the model performs well in discrimination of liquefaction of sand. |
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| Keywords: | evolution genetic algorithm liquefaction of sand discrimination |
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