“…of Illinois at Urbana-Champaign, an above ground testing reconfigurable chamber that can hold up to 36.29 metric tons of soil. That facility has been used to investigate soil-nailed walls [11], earth reinforcement [12], and soldier piles and lagging [13], as well as tied-back anchors [14], which is portrayed in fig. 1 and will be the subject of this paper.…”