Laserfiche WebLink
amed <br />IV)VLF Geosynthetics <br />A) Geomembrane Installation <br />1) VLF <br />Geomembrane installation within the Phase 5 VLF resumed performing deployment, seaming, <br />and repair /QC activities. Geomembrane installation was performed in the area shown on <br />Figure 3. Approximately 131,787 square feet of 80mil LLDPE was deployed using a Komatsu <br />200 excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade <br />was inspected and approved by AMEC and Lonestar representatives prior to geomembrane <br />deployment (see Figure 3). Approximately 6,944 linear feet of seam was fusion welded using <br />four fusion welding machine /welding technician combinations. Sixteen destructive test <br />samples were marked during fusion seaming. Approximately 384 linear feet of seam was <br />extrusion welded using three extrusion welding machine /welding technician combinations. <br />Three destructive test samples were marked during extrusion seaming. All destructive tests <br />performed were within project specifications. Non - destructive testing was performed for fusion <br />welded seams. Repairs were performed using the extrusion welding method for all marked <br />defects. Vacuum testing was performed for all extrusion welded seams and repairs. <br />During the Cresson blast, an AMEC field representative observed the geomembrane and no <br />damage was noted. <br />B) Geomembrane Exposure <br />1) VLF <br />No work performed during the shift. <br />C) Anchor Trench <br />1) VLF <br />Anchor trench excavation continued between stations A37 +00 ( + / -) and A39 +00 ( + / -) and <br />between stations J20 +00 ( + / -) and J21 +00 ( + / -) using a John Deere 35D excavator and one <br />laborer. The anchor trench was inspected by an AMEC field representative and found to be <br />constructed in accordance with design drawings and project specifications. <br />Anchor trench backfill was performed between stations J17 +00 ( + / -) and J21 +00 ( + / -), near <br />centerline using a John Deere 35D excavator, a vibratory plate compactor and laborers. An <br />AMEC field representative observed the backfill and it was found to be constructed in <br />accordance with design drawings and project specifications. <br />D) Geomembrane Acceptance <br />1) VLF <br />Primary 80mil geomembrane (P563, P586, and P804 -P855) shown on Figure 4 was inspected by <br />AMEC and Lonestar representatives and found to be installed within project specifications and <br />acceptable for continued construction activities. <br />VLF Weekly Report WE 09.10.2011 <br />