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FORWARD LANDFILL WMU FU-23 GEOCOMPOSITE <br />02774 7 DRAINAGE NET <br /> PART 3 EXECUTION 3.1 PLACEMENT OF GEOCOMPOSITE A. Place and anchor the Geocomposite in the manner and at the locations shown on the Construction Drawings and as directed by the QA/QC CONSULTANT. Place Geocomposite with the long dimension downslope, unless otherwise directed by the DESIGN ENGINEER. Install Geocomposite smooth and free of tensions, stress, folds, wrinkles, or creases. B. Secure, leak-proof bags of sand shall be used to secure the Geocomposite during installation. Securing pins shall not be used. Sandbags that are placed on the Geocomposite at the base of the slope shall be removed by the EARTHWORK CONTRACTOR immediately prior to placement of the overlying granular drainage material. The sandbags shall be removed from the cell or placed above the protective operations layer and shall not be left within the granular drainage material layer. C. Care shall be taken to keep the Geocomposite clean and free from debris prior to installation. If Geocomposite is not free of soil and debris before installation, it shall be cleaned by the GEOSYNTHETICS CONTRACTOR just prior to installation. D. Lay Geocomposite to ensure that runouts at terminations and tie-ins are placed to the minimum dimensions shown on Construction Drawings. Place Geocomposite in anchor trench at top of slope to the minimum dimensions shown on Construction Drawings. 3.2 JOINTS A. Horizontal Joints: No horizontal joints will be permitted without prior approval of the DESIGN ENGINEER. B. Vertical Joints: Geocomposite panels shall be laid smooth to provide a minimum width of 4 inches of geonet overlap for each vertical joint. Geonet vertical joints shall be tied at 5-foot intervals using a method approved by the QA/QC CONSULTANT. Plastic ties or tying materials shall be of contrasting color to the Geocomposite panels for inspection. Metallic connectors shall not be allowed. C. Sewn Seams: The geotextile component of the Geocomposite shall be joined by sewing continuously. 1. Seam Efficiency: a. Minimum 70 percent. b. Tested according to ASTM D4884.