Particle swarm optimization (PSO) in DC-Slope

New optimization method for straight lines for slip surfaces acc. to Janbu

In the program DC-Slope there is a new optimization method for the search of minimum safety in the method acc. to Janbu, if only straight lines are used for the slip surface: Particle swarm optimization (PSO).

With this method, the slip surface delivering the maximum utilization = lowest safety is determined much better than before with the definition of iteration directions.

Over random numbers, a large number of slip surfaces are determined, which are then moved following a swarm behaviour to approach the slip surface with minimum safety.

With the icon "PSO", the parameters for the optimization may be defined for the case that there is no good convergence achieved.