Science and Technology of Energetic Materials

Vol.65, No.2 (2004)発破特集号

Research paper

Case studies of solving blasting problems for control of fragmentation and wall damage
Chang-Ha Ryu


Rock blasting has two sides of technical skill. In terms of rock blasting, the optimum result is one that maximizes production and minimizes the damage to the remaining rock. To control fragmentation the proper amount of energy must be applied at appropriate sites taking into account rock mass characteristics. On the other hand, the remaining rock mass itself is required to remain stable as a part of a structure. A special type of blasting technique must be used which minimizes the damage done in the remaining rock. This paper presents two case studies of solving problems for control of fragmentation and damage to the rock mass.

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