What is the minimum distance a mine workings must maintain from any part of a winze or shaft where there is known or suspected dangerous accumulation of water?

What is the minimum distance a mine workings must maintain from any part of a winze or shaft where there is known or suspected dangerous accumulation of water?

• A. 4 meters
• B. 6 meters
• C. 8 meters
• D. 10 meters

Answer: (C)

When there’s known or suspected dangerous accumulation of water in a winze or shaft, a safe buffer around the opening is essential. The purpose of this distance is to keep people, equipment, and escape routes out of reach of a sudden water inflow and to give space for dewatering work to proceed without being overwhelmed by rising water. Eight meters provides a practical safety margin that accounts for how water can move through rock fractures, seepage, or splashing from the opening, and it gives responders room to operate if a problem occurs. Smaller clearances don’t provide enough space to retreat or work safely if water surges, while a larger buffer, though safer, can be unnecessarily restrictive for the mine’s layout. Following this distance helps prevent drowning hazards and supports effective control of water around hazardous shafts.

When there’s known or suspected dangerous accumulation of water in a winze or shaft, a safe buffer around the opening is essential. The purpose of this distance is to keep people, equipment, and escape routes out of reach of a sudden water inflow and to give space for dewatering work to proceed without being overwhelmed by rising water. Eight meters provides a practical safety margin that accounts for how water can move through rock fractures, seepage, or splashing from the opening, and it gives responders room to operate if a problem occurs. Smaller clearances don’t provide enough space to retreat or work safely if water surges, while a larger buffer, though safer, can be unnecessarily restrictive for the mine’s layout. Following this distance helps prevent drowning hazards and supports effective control of water around hazardous shafts.