Laserfiche WebLink
E. Prior to placement of next course,the level and alignment of the units shall be checked <br /> and corrected where needed. <br /> F. Layout of curves and corners shall be installed in accordance with the wall plan details or <br /> in general accordance with SRW manufacturer's installation guidelines. Walls meeting at <br /> corners shall be interlocked by overlapping successive courses. <br /> G. Procedures C.through F. shall be repeated until reaching top of wall units,just below the <br /> height of the cap units. Geosynthetic reinforcement, drainage materials, and reinforced <br /> backfill shall be placed in sequence with unit installation as described in Section 4.06, <br /> 4.07 and 4.08. <br /> 4.06 Geosynthetic Reinforcement Placement <br /> A. All geosynthetic reinforcement shall be installed at the proper elevation and orientation as <br /> shown on the final P.E.-sealed retaining wall plan profiles and details, or as directed by <br /> the Wall Design Engineer. <br /> B. At the elevations shown on the final plans,(after the units, drainage material and backfill <br /> have been placed to this elevation)the geosynthetic reinforcement shall be laid <br /> horizontally on compacted infill and on top of the concrete SRW units,to within 1 inch of <br /> the front face of the unit below. Embedment of the geosynthetic in the SRW units shall be <br /> consistent with SRW manufacturer's recommendations. Correct orientation of the <br /> geosynthetic reinforcement shall be verified by the Contractor to be in accordance with the <br /> geosynthetic manufacturer's recommendations. The highest-strength direction of the <br /> geosynthetic must be perpendicular to the wall face. <br /> C. Geosynthetic reinforcement layers shall be one continuous piece for their entire <br /> embedment length. Splicing of the geosynthetic in the design-strength direction <br /> (perpendicular to the wall face) shall not be permitted. Along the length of the wall, <br /> horizontally adjacent sections of geosynthetic reinforcement shall be butted in a manner to <br /> assure 100%coverage parallel to the wall face. <br /> D. Tracked construction equipment shall not be operated directly on the geosynthetic <br /> reinforcement. A minimum of 6 inches of backfill is required prior to operation of tracked <br /> vehicles over the geosynthetic. Turning should be kept to a minimum. Rubber-tired <br /> equipment may pass over the geosynthetic reinforcement at slow speeds (less than 5 mph). <br /> E. The geosynthetic reinforcement shall be free of wrinkles prior to placement of soil fill. The <br /> nominal tension shall be applied to the reinforcement and secured in place with staples, <br /> stakes or by hand tensioning until reinforcement is covered by 6 inches of fill. <br /> 4.07 Drainage Aggregate and Drainage Material Placement <br /> 8 <br />