120 Geochemical stability was ensured by covering the overburden materials to prevent contact with water and thus the generation of acid drainage. To this end, two types of cover were used (Type C3 and Type C4). Figure 8 –Type C3 cover. Figure 9 –Type C4 cover. 2.5 Coverage Installation Procedure The geosynthetics were installed in accordance with coverage types C1 and C3. Figure 10 – Installation of geosynthetics (left) and completed project (right). Preliminary work was carried out at the waste dump, such as removing surface material from the rocky area and profiling the slope, and C3 and C4 type coverings were installed. The
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