Dad2one
Structural
- Jul 2, 2009
- 15
I'm looking for advice on the design pressures for a wall in a condition shown in the attachment. The wall is being cut into over-excavated rock so that waterproofing can be applied to the back side of the wall. The rock produces no lateral pressure and there is only a limited width of soil behind the wall that does produce pressure (to minimize the excavation). Does the fact that there is only a few feet of soil behind the wall result in a lower total horizontal soil load on the wall (that is, a lower overturning moment)? Or must the wall be designed as any other wall retaining that height of soil? That is, will the overturning moment be the same whether there is 1 foot of soil or 50 feet of soil (width, not height) behind the wall?
Thanks.
Dad2one
Thanks.
Dad2one