1046 3.4 Coverage Installation Procedure. The construction process schedule follows the structure shown in Figure 13. As a first step, the surface of the material to be covered was shaped and levelled. Next, a layer of nonwoven geotextile was installed on top of it. After this stage, the HDPE geomembrane was installed in accordance with the requirements of ABNT NBR 16.199:2020, ensuring its performance. With the waterproofing properly installed, the draining geocomposite layer was applied throughout the project area. Considering the large area, some of these steps were performed simultaneously on different work fronts to maintain operational efficiency, as shown in Figure 13. Figure 13 - Installation of geosynthetics – geotextile, geomembrane, and draining geocomposite. Once the drainage geocomposite had been applied, soil was deposited on flat areas such as plateaus and berms. At the same time, geogrids and geocells were installed on the slopes, as shown in Figure 14, anchoring the system in the same trench that had been previously dug for the other geosynthetics. Figure 14 - Installation of geogrids and geocells.
RkJQdWJsaXNoZXIy MTM0Mzk2