本文是作者对美国肯奈柯特矿物公司在犹他州的 NOSE 铜矿的一项实际工程的研究结果。文章用有限元数值分析方法对多步骤回采的充填法回采顺序进行了研究,通过对6种假设例子的实验分析,提出一种基于压力拱的原理,并可很好地控制围岩应力的回采顺序。良好的采区布置和合理的回采顺序,可大大减少岩层控制的许多问题,这一点为越来越多的采矿工程师们所重视。 This article is the result of a study by the authors of a practical project at the Kennametal Minerals Company in Utah, Utah. In this paper, the filling sequence of multi-step mining is studied by finite element numerical analysis method. Based on the experimental analysis of six hypothetical examples, a principle based on pressure arch is proposed and the stress recovery of surrounding rock can be well controlled order. Good mining area layout and reasonable sequence of mining can greatly reduce many problems of rock control, which is paid more and more attention by mining engineers.