During which seasons is the greatest danger from highwalls observed?

The greatest danger from highwalls is typically observed during the winter and spring seasons. During these times, conditions can lead to increased risk factors associated with soil stability and rock fall. In winter, freeze-thaw cycles can weaken the material of highwalls, causing unstable conditions as ice expands and contracts. This can lead to the loosening of rocks and earth, increasing the likelihood of falls.

In spring, the melting of snow and potential for heavy rainfall can saturate the soil, further destabilizing highwalls. The combination of these factors creates a substantially higher risk for accidents related to highwalls during this time. Awareness of these seasonal changes is crucial for safety in mining operations, as they dictate the need for increased caution and monitoring of highwall conditions.