When ground support is necessary where persons work or travel, what is required of the support system?

A support system in mining is critical for ensuring the safety of workers in environments where ground instability may pose a risk. The requirement that the support system must be designed, installed, and maintained to control the ground is essential because it addresses the fundamental safety principles involved in mining operations.

A well-designed support system is engineered to withstand the specific geological conditions of the mining site, helping to prevent collapses and rock falls that could endanger workers. Proper installation ensures that the support interacts correctly with the surrounding rock and soil, effectively stabilizing the area. Moreover, ongoing maintenance is crucial because ground conditions can change over time due to various factors like mining activities, water infiltration, or seismic events. Regular maintenance and adjustments to the support system ensure its continued effectiveness in controlling ground movement, thereby protecting the safety of personnel working or traveling in those areas.

The other options do highlight considerations regarding ground support, but they do not encompass the comprehensive approach required for safety. Temporary support, while useful in certain situations, may not be sufficient for long-term stability. Limiting installation to only necessary areas may overlook potentially hazardous zones that require additional support to ensure safety. Lastly, while monitoring is important, it does not replace the need for the system itself to be robustly designed, installed