principle of economic rationality:
Under the premise of ensuring good blasting effect, reduce infrastructure investment and blasting engineering as much as possible, accelerate the construction speed of infrastructure projects, and reduce blasting costs;
 

blasting design requirements:
According to the overall requirements of the mine infrastructure construction period and production period, combined with the topographic and geological conditions of the ore deposit, scientifically and reasonably determine the parameters and blasting range of the large blast, and the construction should be as convenient as possible and not leave hidden dangers for the subsequent project;

blasting quality requirements:
The shape and distribution of the blast pile should meet the requirements, reduce the bulk rate, reduce the amount of under-excavation at the edge, and the site formed after blasting should be leveled.

blasting safety requirements:
When carrying out large blasting near industrial sites, important buildings or important facilities, the safety of the surrounding environment must be guaranteed, and when carrying out large blasting near the stope side gang, the stability of the mining site side gang must be guaranteed;