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Sensitivity Analysis on Influence Factors of Accumulation Stability Based on Orthogonal Design

WANG Bing;WANG Chang-ming;ZHANG Suo-yu;LU Chang-wei;College of Construction Engineering,Jilin University;Jilin Province Institute of Water Resources and Electric Power Investigation and Design;  
Taking Jiuzi toppling accumulation as the example,the stability analysis is carried out by using orthogonal experiment design and limit equilibrium method,and the range analysis and the variance analysis are made on the orthogonal experimental design results,all the analysis results show that the most sensitive influence factor of accumulation stability is cohesion c,followed by the friction angle φ,the accumulation weight γ has little effect on the stability. The dominant factors affecting slope stability are found out,which provides a reference for the landslide prevention and control project.
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