Numerical Optimisation of Excavation Pit Design Using Finite Element Analyses

Abstract The present study focusses on optimising a single supported excavation pit to achieve more economical design using finite element analyses. Two methods for automating the derivation of pit’s necessary embedment depth are presented, which involve either reduction additional calculation phases or adapting entire model with renewed discretisation. bending moments as well earth pressure distribution along wall show good agreement, indicating that both suitable application. Subsequently, feasibility optimisation algorithms (Particle Swarm Optimisation and Differential Evolution) dimensioning regarding stress analysis is investigated. Therefore, position strut varied five different sheet pile walls three profiles. results demonstrate perform well, particularly higher number steps. After varying iteration steps population size, Evolution approach shows better performance compared Particle by means finding optimal solution after lower computational