2' Retaining wall?
2' Retaining wall?
(OP)
Hi there,
I am a graduate engineer working on a basement project. I am currently stuck with an existing concrete column that was not cast on a proper footing. It was cast on a very thin slab perhaps 2 inches realistically. The client will be excavating down 2 feet from this concrete slab to increase the ceiling height by 2 feet. This will happen on all faces of the column. When they excavate down it will reveal 2' of sandy base material. I was thinking that this will need to be retained by a retaining wall or something. See the attached sketches. Are there any better solutions that would not protrude out much?
Would I need to take the load of the column on the soil as surcharge?
Any guidance would be appreciated.
http://files.engineering.com/getfile.aspx?folder=7...
I am a graduate engineer working on a basement project. I am currently stuck with an existing concrete column that was not cast on a proper footing. It was cast on a very thin slab perhaps 2 inches realistically. The client will be excavating down 2 feet from this concrete slab to increase the ceiling height by 2 feet. This will happen on all faces of the column. When they excavate down it will reveal 2' of sandy base material. I was thinking that this will need to be retained by a retaining wall or something. See the attached sketches. Are there any better solutions that would not protrude out much?
Would I need to take the load of the column on the soil as surcharge?
Any guidance would be appreciated.
http://files.engineering.com/getfile.aspx?folder=7...





RE: 2' Retaining wall?
www.PeirceEngineering.com
RE: 2' Retaining wall?
This photo kind of shows the situation perhaps better than my sketch. The photograph is showing a wall that will require a similar fix to it.
RE: 2' Retaining wall?
RE: 2' Retaining wall?
Yes that makes perfect sense Okiryu. My only concern is that if it is done this way the column would be in tension under its own self weight. I am not sure if this would be an issue. Also how would the column reinforcement tie into the wall?
RE: 2' Retaining wall?
www.PeirceEngineering.com
RE: 2' Retaining wall?