2ft. Gravel Backfill Behind 15ft.High Retaining Wall
2ft. Gravel Backfill Behind 15ft.High Retaining Wall
(OP)
I have a rock excavation that is 15 feet deep. I plan to use only gravel behind it. I have only 2 feet to backfill between the currently blasted 15 foot high rock face and retaining wall. There is NO soil pressure at all, only the new 2 foot of gravel behind it. My question is, what backfill pressure actually develops on the 15 foot high retaining wall?





RE: 2ft. Gravel Backfill Behind 15ft.High Retaining Wall
RE: 2ft. Gravel Backfill Behind 15ft.High Retaining Wall
RE: 2ft. Gravel Backfill Behind 15ft.High Retaining Wall
As an aside - we put in an alternative bid a few years back for a co-generation plant. It was to be blasted into limestone rock. To cut down the costs, we suggested not even putting up a concrete facing wall - just let the rock act as the wall - a false wall would be used between columns with the open space behind - drains at the bottom with geomembrane placed down the rock face to control any seepages into the drain. Would have saved a bundle of moola. - relevance to post - no wall/no pressures!
RE: 2ft. Gravel Backfill Behind 15ft.High Retaining Wall
RE: 2ft. Gravel Backfill Behind 15ft.High Retaining Wall
The optimist sees the glass as half full. The pessimist sees the glass as half empty. The engineer see the glass as too big.