Question

back anchoring of retaining wall is done
(a)reducing earth pressure on stem
(b)to withstand SF and BM on stem
(c)to reduce the section of retaining wall
(d)all of these​

Answer 1

Explanation:

Gravel Backfill

For proper drainage, the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel. This is so that when water gets into the space, it does not become bogged down in soil but instead can flow down the wall to the drains or weep holes.