1.I sometimes design my retaining walls with longer toes and heels, this is because in my FEA program, when I pull my footing under my wall towards the toe, I get lower pressures on my soil (springs) that when I pull it towards the hell (even with the added benefit of the earth on top). This tends to happen when I don't have too much counter balancing soil on my heel. Anyone else get these results? I've never seen any long toe retaining walls in litterature.
2.When calulating over turning moment by hand, all of the litterature I've seen takes the point of rotation at the toe of the wall. If I look at my FEA design, the wall seems to be rotation much more around heel. Is it justifiable to calculate the overturning moment at the toe? This seems to be the point thats most favorable for design, but is it realistic?
I sometimes design my retaining walls with longer toes and heels, this is because in my FEA program, when I pull my footing under my wall towards the toe, I get lower pressures on my soil (springs) that when I pull it towards the heel (even with the added benefit of the earth on top). This tends to happen when I don't have too much counter balancing soil on my heel. Anyone else get these results? I've never seen any long toe retaining walls in the literature.
When calulating over turning moment by hand, all of the literature I've seen takes the point of rotation at the toe of the wall. If I look at my FEA design, the wall seems to be rotating much more around the heel. Is it justifiable to calculate the overturning moment at the toe? This seems to be the point that's most favorable for design, but is it realistic?
