Lidar for Chirano Mine
Overview
This project involved aerial lidar and ground surveying activity covering 430 square kilometres Ghana’s western region within three months.
Situation
Open pit and underground ore are processed at the Chirano plant, which processes ore at a annual 3.5 million tonnes capacity. This involves crushing, ball mill grinding, leaching, and CIL. Gold is also recovered by an elution circuit. An updated digital elevation model and orthophotos were required for improved management, planning, and design of a new tailings dam.
Action
The project team was commissioned to conduct lidar surveys. We captured the required lidar data to produce and deliver a DEM, 0.25m contours, and a 10cm GSD color orthophoto mapping dataset.
Result
Three new dam site possibilities were identified, leading to a quicker design phase initiation while revealing anomalies on the existing systems.