In mining project,rock crushing has great effect on economics and productive efficacy.In order to improve blasting efficacy,it is necessary to classify the rock in terms of its blastability.

• 岩石破碎的好坏对矿山工程在经济上和生产效率上有极为重要的影响,为提高爆破效率,需对岩石的可爆性进行分类。