Rock Dynamic Fracture Characteristics by Mini-Linear Shaped Charge Jet Penetration: A Case Study

Figure 1

Structure of the shaped charge. (a) At the highest jet energy utilization rate. (b) At the highest jet head velocity. (c) To reduce the interference of the sparse wave, the abrupt change points of the shell shape are selected at a slightly inclined position and at the apex of the shell. (d–g) Shape of the tip can cause the detonation pressure to increase uniformly and produce a localized high-pressure effect; cutting depth can be maintained within a large blasting height range [24, 25].

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