Ground retaining wall having the bottom of backfill concrete which is down sloped backwardly, and its construction method

PURPOSE: A ground retaining wall having the bottom of backfill concrete which is down sloped backwardly is provided to reduce construction cost by reinforcing the structure of a retaining wall and reducing the construction period. CONSTITUTION: A ground retaining wall(100) installed at an incline comprises an anchor(120), a plurality of precast panels(130), an anchorage(140), and backfill concrete(150). The anchor is mounted on holes(112) which are formed on the incline(110a). In the precast panel, a hollow is formed. An anchorage mounts the anchor on the precast panel. The anchorage makes the precast panel and the incline moved into one body. The backfill concrete is poured between a rear side(132) and the incline of the precast panel. The banking layer(160) is formed on the top of the backfill concrete.