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。
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.
由于无底柱分段崩落法结构参数一直采用经验方法确定，很难保证结构参数最佳，本文分析了放出体和矿石堆体的形态及其影响因素。
Because of anciently usually adopting empirical method to determine the structure parameter of non pillar sublevel caving, there are hard to guarantee parameter optimize.
揭示无底柱分段崩落法结构参数优化的实质是放出体的空间排列优化问题。
It is exposed that the optimization of the structural parameters of sublevel caving is essentially that of the spacial configuration of the draw off body.
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