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Sensitivity Analysis of the Impact Factors of Landslide Stability with Uniform Design Method
Pages: 115-117
Year: Issue:  11
Journal: Yellow River

Keyword:  uniform designstepwise regressionsignificance testanalysis of variancesensitivity analysis;
Abstract: Uniform design can get the most information with less sites. Taking Shengjibao landslide in Three Gorges Reservoir area for an example, the sensitivity of the soil parameters (weight of soil,cohesion and internal friction angle)affected landslide stability was discussed with uniform de-sign method. It built multiple regression model and conducted significant tests by using stepwise regression of MATLAB software. The results show that cohesion and friction angle have a significant impact on the slope,and the internal friction angleφare the main factors. So it should be primary control of cohesion and internal friction angle in the landslide control. Weight of soil has a little effect on landslide stability and can be ignored.
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