Concrete Counterfort Wall

[SteveMort]

Can anyone point me in the right direction to designing a concrete counterfort wall. It has to be 28' tall and my cantilevered retaining wall is enormous.

 

[bridgebuster]

http://www.eng-tips.com/viewthread.cfm?qid=186290

 

[bridgebuster]

I found some ancient calculations that might be of help. It's a working stress design

 

[msucog]

stepping ahead to some degree, i suggest checking with the local geotech. i had a similar sized wall where the settlement analysis spit out something on the order of 6-8+" differential due to the fill induced settlement. even with substantial undercutting, we were still looking at 3-4". it's just a thought since it killed the wall idea on my project...turned in to a big slope and ate up part of the parking lot when the crest was moved back to provide the 2:1 from the toe.

 

[cvg]

soil anchors, deadman anchors, soil nails etc. may be a more cost effective alternative to reduce your cantilever size

 

[msquared48]

I agree with cvg... Check with your geotech.

Mike McCann
McCann Engineering