Hi,
I have conducted a fully coupled flow-mechanical analysis by using NorSand for tailings during the construction stages. At the end of the construciton, I would like to run a stablity analysis for the tailings dams, I have checked the manual that FLAC uses strength reduction method via comment “SOLVE fos” for the stability analysis, but it seems it only applies to Mohr-coulomb, Ubiquitous-Joint Material, Hoek-Brown Material. Could I add the commend “SOLVE fos” direclty for the stability analysis or I should switch the NorSand model into MC for tailings again to run the stability analysis?
thanks
Derek
1 Like
You have to switch the model to MC to run FoS calculations, as SOLVE FOS does not support NorSand model.
Hi Wang,
thank you for your reply. How can I switch the model to MC, I mean the tailings could probably liquefy at the end of construction and then how can I determine the equivalent c and phi used in MC for the tailings?
thank you,
Derek