three-dimensional earth pressure
three-dimensional earth pressure
(OP)
Hi guys,
I'm Fafo from Italy.
How can I consider the dimension along y axis (see figure) on the calculation of earth pressure in a gravity retaining wall?
I'm Fafo from Italy.
How can I consider the dimension along y axis (see figure) on the calculation of earth pressure in a gravity retaining wall?





RE: three-dimensional earth pressure
RE: three-dimensional earth pressure
However, I assumed you were interested in how to account for earthpressures acting along the y axis. Unless the ground slopes significantly in the direction of the y axis, there is no unbalanced load in that direction. Therefore there is no affect on the wall.
Mike Lambert
RE: three-dimensional earth pressure
For walls with different height along the y axis, can I still apply Coulomb theory? Maybe, applying Coulomb to account for earth pressures acting along the y axis, I overestimate the thrust or I neglect any three-dimensional effect?
RE: three-dimensional earth pressure
Mike Lambert
RE: three-dimensional earth pressure
Mike Lambert
RE: three-dimensional earth pressure
I know, in a retaining wall project the 3D effect are neglected; mine was a "theoretical curiosity" . In your opinion, is it possible still apply Coulomb theory?
RE: three-dimensional earth pressure
RE: three-dimensional earth pressure
RE: three-dimensional earth pressure
??
Not in any theory modelling soil behaviour reasonably accurately.
In answer to the OP, the soil won't be close to an active state in the Y direction, so normal retaining pressure theory would not be applicable. A 3D FEA would be the best way to get a reasonably realistic picture of what is happening.
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: three-dimensional earth pressure
RE: three-dimensional earth pressure
Correct! Using finite element code (for example Plaxis3D ?!)
But do you know any analytical method to solve this problem? Do you know any issue (or publication)?
RE: three-dimensional earth pressure