Smooth blasting technology for construction of Wangjiaqiao quarry
In order to promote the use of smooth blasting in mining construction and ensure the safe construction of the mine,the smooth blasting parameters of the mine were optimized based on the background of Wangjiaqiao quarry in Shenz-hen,and the blasting safety check and blasting flying debris check were carried out.Finally,the blasting scheme was opti-mized,and the initiation network was designed.The field experiment and practical application show that the waste hole rate is decreased by 30％,the blasting quality is effectively improved,the gravel rate decreased by 20％,and the dispersion de-gree during the explosion is reduced,which is beneficial to the loading of the forklift.The half hole rate can reach over 85％,the slope is smooth,the blasting range does not exceed the boundary,and the blasting effect is good.The study pro-vides reference for similar projects.
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