[Purposes]In order to overcome the shortcomings of the traditional deterministic analysis on the stability safety assessment of the new retaining wall,it is necessary to analyze the reliability of the new retaining wall considering the uncertainty of soil parameters.[Methods]Fristly,this paper expresses the uncertainty of soil parameters through probability distribution and calculates the overturning stability and sliding stability of the new retaining wall.Secondly,through neural networks and Monte Carlo simula-tions,reliability analysis of the new retaining wall is performed,providing quantitative reliability indica-tors.Finally,through parameter sensitivity analysis,the importance of each parameter on the safety of the new retaining wall is clearly identified.[Findings]The results indicate that although the new retaining wall has good stability,there is room for optimization,and the deterministic analysis results are conserva-tive.[Conclusions]Different parameters have varying impacts on the safety of the new retaining wall.Ac-curate estimation of the internal friction angle of the backfill soil should be ensured to guarantee the sta-bility of the retaining wall.The research approach of this paper provides ideas and methods for the reli-ability analysis of the new retaining wall.
关键词
新型挡土墙/参数不确定性/可靠性分析/敏感性分析
Key words
new retaining wall/parameter uncertainty/reliability analysis/sensitivity analysis
维普
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