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<br /> <br /> Forward Landfill WMU FU-23 02300 26 EARTHWORK <br /> <br />C. Use hand-held compaction equipment, if necessary. <br /> <br />3.15 ANCHOR TRENCH <br /> <br /> A. The EARTHWORK CONTRACTOR shall excavate the anchor trench as shown <br />on the Construction Drawings. The EARTHWORK CONTRACTOR shall <br />protect the trench from desiccation, sloughing, and flooding. <br /> <br /> B. All corners of anchor trench over which geosynthetic materials will be placed <br />shall be rounded. <br /> <br /> C. Excavated material shall be placed at a sufficient distance from the edge of <br />excavations to prevent cave-ins or bank slides. <br /> <br /> D. Backfill anchor trench when directed by GEOSYNTHETICS CONTRACTOR. <br />Anchor trench shall be backfilled with clay earthfill, or slurry cement mixture as <br />shown on the Construction Drawings or directed by the DESIGN ENGINEER or <br />QA/QC CONSULTANT. General and clay earthfill used as anchor trench <br />backfill shall be compacted to a minimum 90 percent relative compaction per <br />ASTM D1557. <br /> <br /> <br />3.16 TERMINATION BERM <br /> <br /> A. Construct termination of clay earthfill as shown on the Construction Drawings. <br />Place material in loose lifts not exceeding 8-inch depth (after compaction) and <br />compact each lift to approximately 90 percent relative compaction <br />(ASTM D1557). <br /> <br /> B. The EARTHWORK CONTRACTOR shall repair or replace any geosynthetic <br />materials damaged during placement and compaction of the berms, at the <br />EARTHWORK CONTRACTOR's sole expense. <br /> <br /> C. All geosynthetic materials underlying the berms will be inspected and approved <br />by the QA/QC CONSULTANT prior to placement of the clay earthfill. <br /> <br /> D. During all compacting operations, maintain optimum practicable moisture content <br />required for compaction purposes in each lift of fill. Maintain uniform moisture <br />content throughout the lift. Insofar as practicable, add water to the material at the <br />site of excavation. Supplement, if required, by sprinkling the clay earthfill. At <br />the time of compaction, the water content of the material shall be at the optimum <br />moisture content, ±4 percentage points per ASTM D1557. <br /> <br /> E. Do not attempt to compact clay earthfill material that contains excessive moisture. <br /> Aerate material by blading, discing, harrowing, or other methods, to hasten the <br />drying process. <br />