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Using geosynthetic reinforcement to reinforce a pre-cast foundation wall

Using geosynthetic reinforcement to reinforce a pre-cast foundation wall

Using geosynthetic reinforcement to reinforce a pre-cast foundation wall

(OP)
I have a client that approached me asking if I could perform a design to reinforce the soil acting on a pre-cast foundation wall using a geogrid product. I believe this can work, however, I have no experience in designing just stabilized soils as I do primarily segmental retaining wall designs. I've been trying to do some research into what would be the best method of design for this situation. I've looked at stabilized soft soils, reinforced soil slope and even just considered performing the internal stability calculations and treating the foundation wall as a retaining wall. Any advise you could give on where I should start would be greatly appreciated.

RE: Using geosynthetic reinforcement to reinforce a pre-cast foundation wall

My advice would be, be careful. Make sure the structure can move sufficiently far to generate the required force in the soil reinforcement without damage or other unwanted side effects. It might be better to use steel reinforcement rather than geo-grid, but even then the same warning would apply.

Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/

RE: Using geosynthetic reinforcement to reinforce a pre-cast foundation wall

(OP)
Thank you for your reply. I've found the answer to my question shortly after posting the question oddly enough. There is a retaining wall system called a Pressure Relief Wall. It is basically a buried retaining wall that relieves any horizontal forces on the foundation wall. It's actually a pretty ingenious design option. It reduces the size and number of pilasters required on the shear wall. Thanks again though for your advise.

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