Calibration of Safety Coefficient for New Type Retaining Wall Based on Ratio of Safety Margin
[Purposes]To solve the defect that the safety factor cannot consider the influence of soil pa-rameter uncertainty in the design of retaining wall,the calibration of safety factor of new retaining wall is studied.[Methods]By combining the definition of ratio of safety margin with uncertainty analysis meth-ods,uncertainty analysis is made to get the reliability ratio of safety margin.Utilizing the basic principles of safety coefficient,the safety factor for the novel retaining wall is calibrated,ultimately obtaining the calibrated value.[Findings]The results show that the ratio of safety margin for overturning stability and sliding stability,derived from uncertainty analysis and the basic principles of ratio of safety margin,are 1.37 and 1.39,respectively.These values exhibit certain discrepancies with the specified safety factor standard value of 1.6.[Conclusions]The analytical results presented herein can offer insights into the calibration of safety factors for novel retaining walls.
new type retaining wallsafety factor for overturning stabilityratio of safety margincalibra-tion of safety coefficient
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