装药量是爆破工程中非常重要的一个指标 ,装药量的大小直接关系到爆破成本的高低和爆破效果的好坏。本文通过一系列的假定 ,对爆破工程中的单个药包、单个自由面的炸药用量进行了分析 ,提出了理论公式 ,并对公式中的参数及在实践中的应用进行了探讨 The amount of charge is a very important index in blasting engineering. The amount of charge is directly related to the cost of blasting and the effect of blasting. In this paper, through a series of assumptions, the explosive consumption of single medicine bag and single free surface in blasting engineering is analyzed, the theoretical formula is put forward, and the parameters in the formula and the application in practice are discussed