| 基于小生境遗传算法软土地基上加筋路堤稳定性分析 |
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| 引用本文： | 陈昌富,龚晓南.基于小生境遗传算法软土地基上加筋路堤稳定性分析[J].力学学报,2005,13(4):516-520. |
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| 作者姓名： | 陈昌富 龚晓南 |
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| 作者单位： | 1. 湖南大学岩土工程研究所,长沙410082;
2. 浙江大学岩土工程研究所,杭州310027 |
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| 基金项目： | 湖南省自然科学基金(03JJY3087);湖南省交通厅科技基金(200411)资助项目 |
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| 摘 要： | 在软土地基加筋路堤稳定性分析方法中,传统分析方法(如瑞典法和荷兰法)因对加筋材料的加筋作用估计不足,导致计算结果过于保守,与实际不符。本文在充分考虑加筋体的加筋作用下,提出了新的加筋路堤稳定性分析计算方法,并采用小生境遗传算法搜索临界滑动面和最小安全系数。算例计算结果表明,本文提出的加筋路堤稳定性分析方法与工程实际情况吻合较好,并且小生境遗传算法能有效地搜索到边坡所有的临界滑动面。
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| 关 键 词： | 遗传算法 小生境 土工合成材料 软土地基 路堤 稳定性 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2005-01-27 |
NGA-BASED STABILITY ANALYSIS OF REINFORCED EMBANKMENT ON THE SOFT GROUND |
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| CHEN Changfu,GONG Xiaonan.NGA-BASED STABILITY ANALYSIS OF REINFORCED EMBANKMENT ON THE SOFT GROUND[J].chinese journal of theoretical and applied mechanics,2005,13(4):516-520. |
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| Authors: | CHEN Changfu GONG Xiaonan |
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| Institution: | 1. Institute of Geotechnical Engineering,Hunan University,Changsha 410082;
2. Institute of Geotechnical Engineering,Zhejiang University,Hangzhou 310027 |
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| Abstract: | In stability analysis of embankment reinforced by geosynthetics,the traditional method,such as Sweden method and Holland’s method,is obviously conservative owing to underestimation of reinforcement effect of geosynthetics.The authors present a new stability analysis method of embankment reinforced by geosynthetics by modifying assumption of reinforcement’s effect.In addition,the niche genetic algorithm(NGA) is applied in searching for critical slip surface of reinforced embankment.Two case studies were used to demonstrate effectiveness and applicability of the presented method. |
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| Keywords: | Genetic algorithm Niche Geosynthetics Soft ground Embankment Stability analysiss |
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