一、前言在露天矿设计中,我国确定露天矿开采境界的方法主要有剖面法和平面法。用剖面法确定露天境界的基本作法,是用少数几个地质剖面来模拟露天采场范围内的矿体,並将每个剖面作为一个二维的采场来考虑。确定采场轮廓的方法包括改变描述采场坑底和两侧的边坡角 I. Preface In the design of open-pit mines, the methods for determining the level of open-pit mines in our country are mainly the cross-section method and the plane method. The basic approach to determining the level of the open air by the cross-sectional method is to simulate the ore bodies in the open pit area with a few geological sections and to consider each section as a two-dimensional stope. Methods to determine the stope’s profile include changing the slope angle that describes the bottom and sides of the stope