Abstract
According to the theories of explosive mechanics and rock fracture dynamics mechanics, carries on the theoretical analysis to the complex slotted seam cartridge, obtains that the complex slotted seam cartridge has the better directional fracture effect. Through the similar simulation experimental study, using the microscopic fracture detection and the macroscopic observation method, a comprehensive analysis of the complex slotted seam cartridge and the conventional slotted seam cartridge's blasting effect, the analysis also indicated that the complex slotted seam cartridge has the better directional fracture effect and the higher energy utilization, and is smaller to the surrounding rock damage.
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