Detail of the Month 

Detail of the Month

Reinforcement of Curved Walls

The layout of curves and corners for SRWs requires planning by both the design engineer and contractor. The varying  horizontal setback per course (Δu) among different types of SRW units must be considered prior to construction. This variable will dictate actual layout in plan and elevation. Leveling pad location will step up and back as elevation increases due to the horizontal setback per course (Δu). The setback and inclination angles also create larger or smaller radii (lengths of curved wall) as the SRW increases in height, depending upon either a concave or convex orientation. These potential changes in length and elevations must be accounted for in plan and field construction layout of the wall to assure the minimum radius is not encroached upon and that project requirements are met. For reinforced soil walls, specific details on placement of geosynthetic reinforcement at wall corners should be provided in the construction drawings. Note that reinforcement is not overlapped in the same joint and that a minimum of 3 inches (76 mm) of soil is required between overlapping reinforcement.

View Larger Image