·Purpose Mine and quarry operators determine blasting efficiency by the sizes of fragments while regulatory agencies evaluate the same from the level of environmental discomfort Thus a conflict of interest exists This research distinguishes fragmentation efficiency from blasting efficiency It proposes a new approach for evaluating blasting efficiency to break
·effect of hazards Hence the incidents and risks in the West Azerbaijan quarries in Iran are investigated in this work To do so a list of the hazards and their descriptions are first prepared Then the hazard risk rating is conducted using the Failure Modes and Effects Analysis FMEA method The number of priorities is calculated for each
·Groundwater could influence the stability of rock slopes and other mine constructions especially in limestone quarries since calcium carbonate as a major component is easily dissolved in water
·into the circumferential rock mass at a velocity of between 2000 to 6000 m/s causing rock breakage Blasting and explosive usage are potential sources of many human and environmental hazards Actual rock break age effectively utilised only about 5 to 15% of the total available explosive energy released during blasting [10]
The rock extraction process in quarries is the main source of dust as well as other problems including noise vibration and land disturbance [3 4] Quarrying poses a danger to workers due to injuries caused by rocks falling on the workers accidents during the use of machinery and dust exposure which is the main cause of respiratory and
·The quarries are also known as Blue Rock or Blue Metal as they produce chemical grade limestone gypsum common clay china clay or kaolin ball clay and silica sand
·Natural beds of stone can be detected by pouring water and observing its fall in the direction of layers Which respect to natural beds stones for different work are placed in different situations as In stone arches the stones are placed with their natural beds in a radial manner Stone in case of cornices string courses be placed in the vertical
·Quarrying of rocks and minerals has contributed to the economic development of many nations However dusts generated from these quarries have caused environmental and health challenges Health risk assessment of the environments around quarries in southwestern Nigeria was therefore carried out to delineate the effects of quarrying on the environment
Risk Assessment in Quarries using Failure Modes and main causes of risks in the studies quarries are identified The results obtained show that the most likely dangers in dimensional stone mines in West Azerbaijan are diamond cutting wire breaking rock fall and car accidents with the priority numbers of 216 180 and 135 respectively These hazards can be mitigated by applying
·Machinery or man falls from bench crest and rock falls were the most inuential incidents reported by Yari et determined and ranked the main hazards of decorative stone quarrying by
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