Looks like the problem is the designer not the pile .. By the way is the bridge still intact? I am certain you will have long term deflection increase in the case of lateral loads on the piles .. esp given the poor quality (as explained) of the soil in which the pile was founded..
Interesting...
I commented on the same subject under Menard's Pressuremeter .. I think its on 3 of the Tips here ...
As I stated before I am definitely against using software to analyse single pile behavior due to the many variables involved and the very need to exercise good engineering judgement which is...
My question is: what is your purpose for going to the expense of using the Menard Pressuremeter?
If it is solely for the purpose of analysing the behavior of a laterally loaded pile within the cohesionless soil layer, you can use the principles of the Pressuremeter Theory authored by Baguelin...