Laserfiche WebLink
<br /> Page 30 <br />During placement of gravel logs over the geomembrane, temperature changes or creep may cause <br />wrinkles to develop in the geomembrane. Any wrinkles which can fold over must be repaired either <br />by cutting out excess material or, if possible, by allowing the geomembrane to contract by <br />temperature reduction. In no case can material be placed over the geomembrane which could result <br />in the geomembrane folding. The QA/QC Inspector must monitor geomembrane for wrinkles and <br />notify the, QA/QC Manager and Geosynthetics Contractor is wrinkles are being covered by soil. The <br />QA/QC Inspector is then responsible for documenting corrective action to remove the wrinkles. <br /> <br />4.2.7 Folded Material <br /> <br />All folded geomembrane must be removed. <br /> <br />4.2.8 Geomembrane Anchor Trench <br /> <br />The geomembrane anchor trench should be left open until seaming is completed. Expansion and <br />contraction of the geomembrane should be accounted for in the liner placement. The anchor trench <br />should be filled in the morning when temperatures are coolest to reduce bridging of the <br />geomembrane. <br /> <br />4.2.9 Leak Location Testing <br /> <br />The QA/QC Consultant will perform leak location testing on the HDPE geomembrane following geomembrane <br />installation. The requirements for the leak location testing are included in Attachment A. <br /> <br />4.3 Geotextiles <br /> <br />4.3.1 Delivery <br /> <br />During delivery of geotextiles the QA/QC Inspector will: <br /> <br /> Verify that equipment used to unload the rolls will not damage the geotextile. <br /> <br /> Verify that rolls are wrapped in impermeable and opaque protective covers. <br /> <br /> Verify that care is used to unload the rolls. <br /> <br /> Verify that all documentation required by the Specifications has been received. <br /> <br /> Verify that each roll is marked or tagged with the following information: manufacturer’s <br />name; project identification; lot number; roll number; roll dimensions. Log this <br />information on the geosynthetic receipt form. <br /> <br /> Verify that the geosynthetic receipt form is completed. <br />