After analyzing the movement law of ore drawing body,the basic parameters of sublevel mine in a gold mine are calculated by the experiment result of single model and surface model in a lab.

• 介绍了无底柱分段崩落法放矿基本原理,利用室内单体模型和平面模型的放矿试验,分析了放矿体的流动规律,并据此确定了某金矿无底柱分段崩落法的基本结构参数。