LDNgeo
Geotechnical
- Nov 4, 2022
- 2
Hi all,
Have a question about earth pressures I was wondering if someone was able to provide some help with.
In over consolidated soils, if you had a wall that was propped in permanent case, but was able to move sufficiently far to develop active earth pressures initially either through installation effects or movement during temporary propping before permanent props are installed. Would the soil "reset" to at-rest pressures in the long term, eg over next 20 years? A colleague from another office was saying this could happen and I didn't really understand the mechanism behind it..
From a design perspective I understand its easier to just design the wall for k0, but Im more curious about how this would happen in the soil, and for an over consolidated soil if you would get back to its much higher k0 (eg 2-3) which has been generated from long periods of higher overburden, or if it would go back to a k0 more reflective of a normally consolidated soil?
Appreciate any thoughts!
Have a question about earth pressures I was wondering if someone was able to provide some help with.
In over consolidated soils, if you had a wall that was propped in permanent case, but was able to move sufficiently far to develop active earth pressures initially either through installation effects or movement during temporary propping before permanent props are installed. Would the soil "reset" to at-rest pressures in the long term, eg over next 20 years? A colleague from another office was saying this could happen and I didn't really understand the mechanism behind it..
From a design perspective I understand its easier to just design the wall for k0, but Im more curious about how this would happen in the soil, and for an over consolidated soil if you would get back to its much higher k0 (eg 2-3) which has been generated from long periods of higher overburden, or if it would go back to a k0 more reflective of a normally consolidated soil?
Appreciate any thoughts!
