Located in Kathu, Northern Cape, South Africa, the United Manganese of the Kalahari (UMK) oversees an open-pit mine specializing in manganese extraction. They faced significant challenges with the integrity of their highwalls, particularly concerning their health and safety standards during operations. Recognizing these issues, UMK approached Enaex, seeking expertise on potential methods to enhance the conditions of their highwalls, especially on the southern and western flanks.
The pre-split trial was a success.
Maimane Joe Mosupyoe, General Manager
Enaex recommended the use of perimeter blasting techniques, including pre-splitting and buffer applications, to improve the conditions of the southern and western highwalls. By incorporating these techniques into their block designs, the goal was to minimize the impact of explosive energy on the highwalls. This method not only ensured increased stability and safety but also addressed UMK’s primary concerns regarding highwall conditions.
The adoption of the pre-splitting technique by Enaex led to tangible improvements in UMK’s operations:
Enaex’s commitment to understanding and addressing UMK’s specific challenges showcased the strength of their partnership. Better final wall conditions were realized on the pre-split trials. This in turn meant that the health and safety concern of poor highwall conditions was alleviated.