The K1 site in the interior of Côte d'Ivoire is executing a next-generation TSF construction process expected to exhibit long-term waste storage performance under West Africa's tropical climatic conditions. In this geography where annual rainfall is high and dry-to-wet season transitions are sharp, the geomembrane installation schedule is planned directly dependent on the climate window; therefore, manufacturing...

Continued collaboration at the same site over the years presented a completely different engineering equation with the raising of the waste storage facility and commissioning of new cells within the scope of the fourth phase. Field data obtained from previous phases made it possible to directly reflect the base profile and slope stability parameters into the design; this also allowed the panel cutting plan and welding routes...

The third phase started as a natural continuation of a four-year cumulative collaboration at the Bomboré site. The employer's operational need was a volume increase that would outpace the rate of waste generation; this meant multi-front simultaneous work on our side — subgrade acceptance, geomembrane deployment, and welding stations were advanced simultaneously in different cells. The site-specific most critical engineering...

The work carried out at the Lafigue site was a greenfield waste storage facility lining that had to be completed within a short and intense schedule. The narrow window until the beginning of the rainy season required the simultaneous configuration of equipment mobilization and panel deployment methodology. In the regions where site preparation was completed, HDPE geomembrane roll unrolling, panel cutting, and welding operations were carried out in sequential shifts...

Since Bomboré's second phase expansion was built on the field data accumulated in the first phase, it started with a planning advantage but became a process as challenging as the first phase on the implementation side. With the increase in plant capacity, the surface area of the waste basin grew significantly, and the hydraulic integration of the new cell into the existing facility required special [attention/details] in transition zones...

In this comprehensive capping work at the Tasiast operation's waste storage facility, a composite liner system designed with a triple barrier logic was brought to the site: GCL (geosynthetic clay liner) at the bottom layer, HDPE geomembrane on top, and heavy-weight geotextile for mechanical protection. Hydration control under low moisture conditions during GCL deployment and bentonite reinforcement at overlap strips, the site's extreme...

The defining feature of the fifth stage was the necessity to integrate the site into a matured TSF complex. This required the implementation of welding and connection details at the boundary regions of the new cell without damaging the operating facility. During slope lining, gravity-supported deployment method was preferred for steep cuts; the panel deployment direction was determined by considering the prevailing wind and thermal expansion during the day...

When it comes to the two-phase expansion of a waste storage facility sitting on a narrow valley floor in the mountainous interior of the Eastern Black Sea region, the weld continuity standard of the joint lines at the phase transitions determines the performance of the entire project. The boundary panels of the first phase liner system were joined with specially prepared transition details within the scope of the second phase; double weld lines at these points…

In this work carried out at a mining site in the northern part of the Nubian Desert, where daytime surface temperatures can exceed 60°C in summer months, the choice of geomembrane color was not accidental. Instead of standard black HDPE, white-on-black co-extruded geomembrane was used; thus, the membrane surface temperature during deployment was significantly reduced, thermal stress-induced wrinkling was minimized, and...