Robust Geotechnical Design of Gravity Retaining Wall

Abstract:

A new design methodology, robust geotechnical design, was proposed to improve the design of gravity retaining wall. In which, the effect of uncertainty in statistics of soil parameters on the failure probability was investigated. Furthermore, two different robust design approaches based respectively upon the multi objectives optimization and the confidence level of structural performance were introduced. To demonstrate the effectiveness and significance of the proposed robust design methodology, an illustrative example is followed. A comparative study was made of the design on the basis of the reliability based design methodology and the proposed robust design methodology, and the significance of the proposed robust design methodology is presented through this example.

Key words:gravity retaining wall; robust design; reliability design; deterministic design; variability