ABSTRACT
In this paper, the authors investigated the effectiveness of three types of small diameter steel pipe reinforcement on the reduction of horizontal displacement of soil and stability of a retaining wall, using a soil tank and simulated house on land with a sloped retaining wall. Horizontal and vertical loads were applied to the base of the house and images taken with a digital camera were used in 2D image correlation analysis in order to measure the amount of horizontal displacement of the soil and retaining wall. It was found that the pattern of slip failure was different for unreinforced and reinforced soil. Also, out of the three types of reinforcement, the Λ-type reinforcement was most effective in restraining the horizontal displacement of the soil and increasing stability of the retaining wall.
