MSE Retaining Wall system design (redi-rock) 1

[EngineerAll]

I am working on designing a two tier redi-rock retaining wall system. The tiers are 15 feet in height and would require long geogrids. I was wondering if I use a special foundation system say a concrete footing on caissons would that help with sliding and hence reduce the length of geogrid.

 

[jdonville]

engineerall,

It's not uncommon for the reinforcement ratio to be 80 or 90 percent of the wall height. For tiered walls, depending on the geometry, the effective wall height can be the total height of all the walls. If your reinforcement length exceeds about 1.1 times the wall height, it might be time to consider another wall system.

You might consider posting to the 'earth retention engineering' forum in the geotechnical area.

Jeff


Jeffrey T. Donville, PE
TTL Associates, Inc.

http://www.ttlassoc.com

The views or opinions expressed by me are my own and do not necessarily reflect the views or opinions of my employer.