A Study On The Damage To A Mine Drift Caused By Blast Welding
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Explosive welding is planned in an abandon drift which is approximately 10m radius and 9m height. According to the plan the amount of explosive, ANFO will be up to 1000kg per stage. Before the explosive welding experiment, the environmental analysis especially about the air-blast over pressure should be concerned because that the explosive welding is methodologically similar to open pit blasting. The air-blast over pressure could give damages to nearby structures and cause human annoyance. Normally in tunnels and ...
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