Falls of ground

Falls of Ground (FoG) refer to the collapse, slip or detachment of rock from mine hanging walls (roofs), sidewalls, faces or slopes. These events occur in both underground and surface mining operations and are classified into two types:

• Gravity-induced falls, caused by loose or unstable rock detaching under gravity.
• Dynamic falls, triggered by seismic activity or stress redistribution in the rock mass, which can result in violent failures such as rockbursts and strainbursts.

Industry Response to Falls of Ground Risks

Falls of Ground remain the most significant safety concern in the South African mining industry. In response, the Minerals Council South Africa, in collaboration with industry stakeholders, has implemented targeted initiatives to reduce FoG-related injuries and fatalities.

Established in 2003, the MOSH Learning Hub plays a central role in this effort. The MOSH Falls of Ground Team leads the promotion and adoption of leading practices in ground control, aiming to improve mineworker safety and operational resilience.

Impact of Collaborative Efforts

The industry’s collective efforts have resulted in notable reductions in FoG incidents, aligning with the broader mining goal of achieving Zero Harm. Through continuous research, shared learning and strategic implementation, FoG risks are being actively mitigated across operations.