Sensitivity Analysis of Earth-filled Dams Based on Experimental Design
Sensitivity Analysis of Earth-filled Dams Based on Experimental Design
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DOI：
10.11408/jsidre.83.ii_77
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
T. Shuku;S. Nishimura;T. Shibata
中科院分区：
文献类型：
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作者：
T. Shuku;S. Nishimura;T. Shibata
本文基于试验设计，特别是正交试验设计，研究了输入参数对土坝稳定性分析的影响。进行了符合正交设计的基于计算机的实验以提高稳定性分析的效率，并且使用线性回归模型来分析数值实验的结果。回归分析得到的标准化回归系数（SRC）被用作Fs对输入参数的敏感性指标。敏感性分析的结果表明，有关的参数的几何形状的土坝，如高度和坡度，有一个更大的影响Fs比那些有关的水力特性的填充材料。
This study investigated the effects of the input parameters on analyses of the stability of earth-filled dams based on experimental design, in particular an orthogonal design. Computer-based experiments that conformed to an orthogonal design were carried out to increase the efficiency of the stability analysis, and a linear regression model was used to analyze the results of the numerical experiments. The standardized regression coefficients (SRCs) obtained from the regression analysis were used as indexes of the sensitivity of Fs to the input parameters. The results of the sensitivity analysis showed that the parameters related to the geometry of earth-filled dams, such as the height and slope gradient, have a greater effect on Fs than those related to the hydraulic characteristics of the fill materials.