| 两种Rosenblueth改进法分析边坡稳定可靠度 |
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| 引用本文： | 马栋和,王常明,杨树才,吴谦,朱海波. 两种Rosenblueth改进法分析边坡稳定可靠度[J]. 吉林大学学报(地球科学版), 2011, 0(Z1): 195-200 |
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| 作者姓名： | 马栋和 王常明 杨树才 吴谦 朱海波 |
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| 作者单位： | 吉林大学建设工程学院; |
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| 基金项目： | 国家科学自然基金项目(40972171); 吉林大学种子基金(40870433) |
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| 摘 要： | 采用Rosenblueth方法进行边坡可靠度分析时,需要计算2n个参数变量的组合。当输入的参数变量n较多时(如4,5,6),计算量便大大增加。提出两种改进方法:Lind法与Harr法,通过改变取样点的选取位置,将计算次数降为2n次。算例1中,采用上述3种方法计算所得边坡滑坡概率依次为:8.23%、7.93%和7.49%,采用Monte Carlo法进行对比计算得滑坡概率为9.18%,计算结果均非常接近。且2种简化法无需了解各变量的分布特征,只需利用变量的均值和方差,有效地提高了计算效率,并满足一般边坡的精度要求。
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| 关 键 词： | 可靠度 Rosenblueth法 Harr法 可靠度指标 |
Two Rosenblueth Improved Method Appied in Reliability Analysis of Slope Stability |
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| MA Dong-he,WANG Chang-ming,Yang Shu-cai,WU Qian,ZHU Hai-bo College of Construction Engineering,Jilin University,Changchun ,China. Two Rosenblueth Improved Method Appied in Reliability Analysis of Slope Stability[J]. Journal of Jilin Unviersity:Earth Science Edition, 2011, 0(Z1): 195-200 |
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| Authors: | MA Dong-he WANG Chang-ming Yang Shu-cai WU Qian ZHU Hai-bo College of Construction Engineering Jilin University Changchun China |
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| Affiliation: | MA Dong-he,WANG Chang-ming,Yang Shu-cai,WU Qian,ZHU Hai-bo College of Construction Engineering,Jilin University,Changchun 130026,China |
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| Abstract: | It is required to calculate 2n parameter combinations when to analyze the reliability of soil slope stability using the Rosenblueth method,so the amount of calculation will be greatly increased as the input variable n is larger,such as 4,5,and 6.Therefore,two kinds of relatively simple way Lind and Harr methods were proposed to make the amount of calculation reduce to 2n times,which take approaches by changing the location of sampling points.Calculated using the above three methods in example 1,the probabil... |
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| Keywords: | reliability Rosenblueth method Harr method reliability index |
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