guidance on the safe use of explosives in quarries - Health and .Jun 19, 2001 . b) Ground vibration, air blast overpressure and flying stones; c) Shotfiring. A quarry may need . overall management of the quarry and safe use and security of explosives. The operator is similarly . is as low as possible, and should state any special precautions required to achieve this;. (b) Minimise the.safety precaution in blasting of quarrying stone,Safe distances when using explosives - WorkSafe Victoriafire blasting explosives (shotfirers) to take precautions to ensure that people (including workers and the public) near the blasting area are: • at a safe distance, or. • provided with and . sites other than mines and quarries, and setting up exclusion zones. Table 1 – Small to .. are blasting mats or. 2m of clean, stone-free fill.