Dangers in blasting in hot strata
Dangers in blasting in hot strata * Danger of premature blasting of explosives. *Danger of misfire Precautions : DGMS permission shall be obtained.Only slurry or emulsion shall be used. Blasting shall be done with detonating fuse down the hole, Detonator shall not be placed in the hole. Temperature at bottom of blast holes shall be measured and recorded after drilling and every shift thereafter .If temperature of hole exceeds 80° C,it shall not be charged.All holes shall be kept filled with water.A hole traversed by cracks and fissures shall not be charged unless it is lined with an asbestos pipe and the hole filled with water.In addition,bentonite shall be used for sealing cracks at the bottom of holes. Before loading explosives,the detonating fuse shall be cut from the reel.Stemming shall be commenced...